General Purpose Products VINmax >25V Controllers Integrated Switch Buc

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General Purpose Products VINmax >25V Controllers Integrated Switch Buc

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2006
General Purpose Products VINmax >25V Controllers Integrated Switch Buck Regulators 10-13 Boost Regulators Controllers 14-15 MOSFET Drivers 16-17 General Purpose Products VINmax Integrated Switch Buck Regulators Controllers 18-19 Boost Regulators Voltage References Linear Regulators 22-27 General Purpose Products VINmax Inductive Buck Regulators Controllers 28-29 Switched Capacitor Buck Regulators Boost Buck Boost Multi-Output Regulators Integrated Power Management Units Supervisors Sequencers Products Switching Regulators Power Amplifiers 36-37 Drivers 38-41 Industrial Telecom Solutions Memory Supply Regulators Automotive LDOs 44-45 Switching Topologies 46-47 Packaging
National's Power Management Product Portfolio
Power Solutions Category
Voltage Conversion
Linear regulators Switching regulators SIMPLE SWITCHERS® Synchronous Inductorless controllers Isolated solutions High voltage Charge pumps
Voltage Control
MOSFET drivers switches H-bridges Motor driving motion control swap
Voltage References
Shunt Serial High precision Digitally stored calibration
Voltage Monitoring
Current gauges Battery charging Reset circuits Programmable supervisory
Power Solutions Application
Core Voltage (DSPs/FPGAs/ASICs)
LDOs Switching regulators Switched caps Switching controllers
Analog Signal-Path Power
LDOs Switching regulators
Lighting Management
LMUs* White drivers drivers Inductorless constantcurrent sources
Memory Power
Termination regulators Core regulators
Industrial Telecom
Hot-swap controllers MOSFET drivers controllers Buck/boost switching regulators
Servers, Datacom Networking
IMVP MOSFET drivers switches Multiphase controllers
TFT/Display Power
Boost regulators Gamma buffers Dual regulators
Portable/Battery Applications
Li-Ion battery chargers Switching regulators PMUs** regulators Voltage supervisory
*LMUs Highly integrated Lighting Management Units **PMUs Highly integrated Power Management Units
White/RGB drivers
Contents
General Purpose
Switching Regulators Integrated Switch Buck Regulators (VINmax>25V) 10-13 Boost Switching Regulators (VINmax >25V) 14-15 Integrated Switch Buck Regulators (Vinmax 25V). 18-19 Boost Regulators (VINmax 25V) Inductive Buck Regulators (VINmax <7V).28 Switched Capacitor Buck Regulators (VINmax <7V) Switched Capacitor Boost Buck Boost regulators (VINmax <7V) Switching Controllers Isolated Controllers (VINmax >25V) Non-Isolated Controllers (VINmax>25V). Switching Controllers Non-Isolated Buck Topologies (VINmax 25V) 18-19 Switching Controllers Non-Isolated Buck Topologies (VINmax <7V) Linear Regulators Linear Regulators (VINmax >7V) 22-25 Linear Regulators (VINmax <7V) 26-27 Multi-Ouput Regulators Dual Switching Regulators Internal Switch Dual Multiple Devices.32 References Voltage References MOFSET Drivers 16-17
Application Specific Standard Products
Integrated Power Management Units.33 Sequencers Voltage Supervisors Power Distribution Over-Current Protection Switches.35 Power-over-Ethernet Solutions Battery Charging Solutions Switching Buck Regulators Linear Power Amplifiers Power White Drivers 38-39 Lighting Management Units (LMUs).40 High Brightness Drivers Telecom Hot-Swap Controllers Industrial Telecommunication Solutions Memory Supply Termination Automotive LDOs 44-45
Switching Topologies 46-47
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Products
Product LM3489 LM5009 LM2694 LM2695 LM26001 LM5100B LM5100C LM5101B LM5101C LM2747 LM3495 LP5951 LP3879 LP38856 LP38859 LM3673 LM2830 LM2831 LM2832 LM1771 LM2771 LP3996 LP5996 LP3905 LP3906 LM3880 LM5072 LM3658-A LM3658-B LM3207 LM3208 LM2754 LM27965 LM27966 LP5526 LP5527 LM5069 Description Hysteretic PFET buck controller with enable 100V buck switching regulator 30V, buck switching regulator High-voltage (30V, 1.25A) buck switching regulator 1.5A switching regulator with high efficiency sleep mode high-voltage, high-side, low-side gate driver high-voltage, high-side, low-side gate driver high-voltage, high-side, low-side gate driver high-voltage, high-side, low-side gate driver Synchronous buck controller with pre-bias startup Emulated peak current mode buck controller output voltage Micropower low-dropout CMOS voltage regulator Micropower noise `ceramic stable' voltage regulator fast-response high-accuracy linear regulator fast-response high-accuracy linear regulator with soft-start MHz, buck DC-DC converter 1.0A high-power density buck regulator 1.5A high-power density buck regulator 2.0A high-power density buck regulator Low-voltage synchronous buck controller with precision enable Low-ripple switched capacitor buck DC-DC converter Dual with 300mA 150mA outputs Power-On-Reset Dual with 300mA 150mA outputs Power management unit power handheld applications Programmable power management unit with compatible interface Power Sequencer SOT23-6 package controls supplies Integrated 100V power-over-ethernet interface controller USB/AC adapter with internal switch, Li-Ion battery charger USB/AC adapter with internal switch, Li-Ion battery charger miniature, adjustable, buck DC-DC converter with Integrated VREF miniature, adjustable, buck DC-DC converter switch flash driver with timeout protection Dual display white driver with compatible brightness control White driver with compatible interface Lighting management unit with high voltage boost converter Tiny driver camera flash LEDs with Positive swap controller programmability Page
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Isolated Controllers (VINmax >25V)
Controllers Isolated Topologies
Product LM5020 LM5021 LM5025A/B LM5026 LM5030 LM5032 LM5033 LM5034 LM5035 LM5041/A LM5115 LM25115 Description Single ended AC-DC controller Active clamp Active clamp Alternating outputs Dual interleaved Alternating outputs Dual interleaved active clamp Half-bridge controller gate driver Buck-fed cascade alternating outputs Secondary-side post regulator Secondary-side post regulator Mode Current Current Voltage/feedforward Current Current Current Voltage Current Voltage Current Voltage/currentinjection Voltage/currentinjection Topologies Flyback, forward, buck, boost Flyback, forward Forward active clamp Forward active clamp Push-pull, half-, full-bridge Flyback, forward Push-pull, half-, full-bridge Forward active clamp Half-bridge Current voltage push-pull, bridge Synchronous secondary-side post regulator Synchronous secondary-side post regulator (Max) (kHz) 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 Sync down Input/output UVLO
Power Supply Feedback Control/Opto-Coupler Driver Circuits
Product LM3411 LM3460 Function Precision 3.3V 5.0V secondary regulator/driver Precision 1.2V 1.5V secondary regulator/driver Output Current control regulator Current control regulator Tolerance Other Features/Comments Custom voltages available 17V) also used GTL, GTLp voltage control Temp Range (°C) Packaging SOT23-5 SOT23-5
LM5026 Features
Current mode control Internal 100V start-up bias regulator
LM5026 Simplified Forward Power Converter with Active Clamp Reset
VOUT 3.3V
compound main gate driver High bandwidth opto-coupler interface Programmable Line Under-Voltage Lockout (UVLO) with adjustable hysteresis
LM5026 OUT_A UVLO TIME OUT_B COMP SYNC PGND AGND
Introduction forward power converters utilizing active clamp reset
Error Isolation SYNC
I-Limit Cycle-cycle Cycle-cycle hiccup Cycle-cycle hiccup Cycle-cycle hiccup Cycle-cycle hiccup Cycle-cycle hiccup Hiccup Cycle-cycle hiccup Cycle-cycle hiccup Cycle-cycle hiccup Cycle-cycle Cycle-cycle
Gate Drivers 2.5/0.25
1.25V 1.25V 0.75V 0.75V 1.7% 0.75V 1.7%
Other Features/Comments duty cycle limit (LM5020-1 LM5020-2 respectively) start-up current; cycle skipping; hiccup current limit datasheets unique features LM5025A, LM5025B High bandwidth opto interface; programmable maximum duty cycle Slope compensation, direct opto-coupler interface Controls dual single interleaved converter Intermediate converter controller Controls dual single interleaved converter SyncFET driver, high bandwidth opto interface, thermal sensor/OVP comparator Programmable deadtime, overlap timing Operates from input version LM5115
Temp Range (°C)
Packaging MSOP-10, LLP-10 MSOP-8, MDIP-8 TSSOP-16, LLP-16 TSSOP-16, LLP-16 MSOP-10, LLP-10 TSSOP-16, LLP-16 MSOP-10, LLP-10 TSSOP-20 TSSOP-20, LLP-24 TSSOP-16, LLP-16 TSSOP-16, LLP-16 TSSOP-16, LLP-16
Output Current Gauge
Sense Internal Accuracy Including Current Sense Element Internal Sense Sensing Sampling Supply Temp Range Product Range* Resistance Element Type Interval (ms) Voltage (°C) LM3812-1.0 0.004 High side 5.25 LM3812-7.0 0.004 High side 5.25 LM3813-1.0 0.004 side 5.25 LM3813-7.0 0.004 side 5.25 LM3814-1.0 0.004 High side 5.25 LM3814-7.0 0.004 High side 5.25 LM3815-1.0 0.004 side 5.25 LM3815-7.0 0.004 side 5.25 LM3822-1.0 0.003 High side 5.25 LM3822-2.0 0.003 High side 5.25 LM3824-1.0 0.003 High side 5.25 LM3824-2.0 0.003 High side 5.25 *While LM38xx-7.0 will read full scale, rated operation duration more than operation continuously. Packaging SOIC-8 SOIC-8 SOIC-8 SOIC-8 SOIC-8 SOIC-8 SOIC-8 SOIC-8 MSOP-8 MSOP-8 MSOP-8 MSOP-8
LM5035 Half-Bridge Power Converter
LM5035
UVLO RAMP
VOUT
Current Sense
Efficiency VOUT 3.3V, IOUT Load Regulation 0.2%
Half-bridge power converter design using LM5035
RT/SYNC COMP
Error Isolation
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Non-Isolated Controllers (VINmax >25V)
Single Dual Switching Controllers
Product LM3477/77A LM27241 LM3075 LM3485
2.95
VOUT Options (Adj Range) Down Down Down 1.3V Down 1.27 Down 1.239 Down 0.75 0.75 0.925 1.25 13.5 Down 32.5 32.5
VOUT Accuracy
IOUT
(kHz) 200, 1400 1400 1000 1000 200, 200, 200,
Mode Current Voltage Current Hysteretic Hysteretic Voltage Voltage/current injection Voltage/current injection Current Current Current Current Current Voltage with feed-forward Voltage Current Current
Shutdown
SoftStart
Synchronous Rectification
Power Good
LM3489 LM3578A LM5115 LM25115 LM2633 LM2640 LM2641 LM2642 LM2645 LM2647 LM2657 LM5642 LM5642X
1Per
channel. Twice this current obtained dual controllers when channels paralleled.
LM5115 Synchronized Multi-Output Power Supply Using Secondary Side Post Regulator
LM5115 Features
Self-synchronization main channel output Stand alone DC-DC synchronous buck mode Voltage-mode control with current injection input line feed-forward Operates from input
Typical Application
Input 100V
LM5025 Primary side controller
Main Output 3.3V,
(AC)
VBIAS SYNC BIAS
(DC)
LM5115 SSPR
RAMP
Auxiliary output Efficient
Multi-output switching regulators featuring LM5115
Lossless ISENSE
Clock Sync
Total Regulators
Other Features/Comments Hysteretic threshold version) programmed current limit; VOUT Selectable pulse-skip mode high light load efficiency User-selectable FPWM SKIP modes, positive negative current limit, UVLO, compensation required. Current limit; P-FET controller compensation required. Current limit; P-FET controller; enable pin; power saving shut down mode pins; 1.0V internal VREF. industrial temp range, LM2578A Voltage mode/current injection simpifies loop compensation version LM5115 out-of-phase; 5-bit digital control channel; linear controller Individual soft-start allows sequencing; linear output, FPWM Individual soft-start allows sequencing; linear output, FPWM out-of-phase channels; individual soft-start allows sequencing out-of-phase channels; linear controller 3.3V output rail PWM/SKIP FPWM modes; soft shutdown, line feedforward, out-of-phase Same LM2647 with lower auto-recover from faults out-of-phase channels; individual soft-start allows sequencing out-of-phase channels; individual soft-start allows sequencing
Temp Range (°C)
Packaging MSOP-8 TSSOP-20 TSSOP-20 MSOP-8 MSOP-8 SOIC-8, DIP-8, TSSOP-16, LLP-16 TSSOP-16, LLP-16 TSSOP-48 TSSOP-28 TSSOP-28 TSSOP-28 TSSOP-48 TSSOP-28, LLP-28 TSSOP-28 TSSOP-28 TSSOP-28
LM3489 Hysteretic PFET Buck Control with Enable
Features
Easy-to-use control methodology control loop compensation required Wide 4.5V input range 1.239V adjustable output range efficiency
CIN1 PGATE CIN2 ISENSE PGND COUT CADJ RADJ VOUT 3.3V o.5A
High Efficiency, Robust, Power Supply
LM3489
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Integrated Switch Buck Regulators (VINmax >25V)
IOUT IOUT
Product IOUT
LM5009
4.75 4.75 4.75 4.75
VOUT Options (Adj Range) (down 2.5) (down 2.5) 3.3, (1.23 3.3, (1.23 3.3, (1.23 3.3, (1.23 3.3, (1.23 3.3, (1.23 3.3, (1.21 3.3, (1.21 (down 2.5) (down 2.5) (down 2.5) (1.0 (down 2.5) 3.3, (1.23 3.3, (1.23 3.3, (1.23 3.3, (1.23 3.3, (1.23 3.3, (1.23 3.3, (1.21 3.3, (1.21 3.3, (1.23 (down 2.5) (down 2.5)
(kHz) 1000
Shutdown
Soft-Start
Power Good
Clock Sync
IOUT LM5008 IOUT LM2574 LM2574HV LM2594 LM2594HV LM2597 LM2597HV LM2671 LM2674 LM5007 LM25007 IOUT
LM2694
IOUT LM3578A
LM2695
LM2575 LM2575HV LM2590HV IOUT LM2591HV LM2595 LM2598 LM2672 LM2675 LM2825 LM2825H LM5010A LM25010
Temp Range (°C)
Other Features/Comments Internal startup regulator internal 100V/0.25A N-MOSFET, pull ground shutdown Internal startup regulator internal 100V/0.5A N-MOSFET, pull ground shutdown SIMPLE SWITCHER® regulator SIMPLE SWITCHER regulator SIMPLE SWITCHER regulator SIMPLE SWITCHER regulator Error output delay, SIMPLE SWITCHER regulator Error output delay, SIMPLE SWITCHER regulator 1.5% output voltage accuracy, SIMPLE SWITCHER regulator 1.5% output voltage accuracy, SIMPLE SWITCHER regulator Internal startup regulator internal 80V/0.7A N-MOSFET, pull ground shutdown Internal startup regulator internal 42V/0.7A N-MOSFET, pull ground shutdown compensation required; ultra-fast transient response; thermal shutdown; available industrial temp range, LM2578A compensation required; ultra-fast transient response; thermal shutdown grade version available (LM1575), SIMPLE SWITCHER regulator grade version available (LM1575HV), SIMPLE SWITCHER regulator Error output delay, SIMPLE SWITCHER regulator SIMPLE SWITCHER regulator SIMPLE SWITCHER regulator Error output delay, SIMPLE SWITCHER regulator 1.5% output voltage accuracy, SIMPLE SWITCHER regulator 1.5% output voltage accuracy, SIMPLE SWITCHER regulator Totally integrated switching power supply, external components Totally integrated switching power supply, external components compensation required; ultra-fast transient response; thermal shutdown Ultra-fast transient response; thermal shutdown
Packaging MSOP-8, LLP-8 MSOP-8, LLP-8 SOIC-14, DIP-8, SOIC-14, DIP-8, SOIC-8, DIP-8, SOIC-8, DIP-8, SOIC-8, DIP-8, SOIC-8, DIP-8, SOIC-8, DIP-8, LLP-16, SOIC-8, DIP-8, LLP-16, MSOP-8, LLP-8 MSOP-8, LLP-8 eTSSOP-14, LLP-10 SOIC-8, DIP-8, eTSSOP-14, LLP-10 SOIC-24, DIP-16, TO263-5, TO220-5, SOIC-24, DIP-16, TO263-5, TO220-5, TO263-7, TO220-7, TO263-7, TO220-7, TO263-5, TO220-5, TO263-5, TO220-5 SOIC-8, MDIP-8, LLP-16, SOIC-8, MDIP-8, LLP-16, MDIP-24 MDIP-24 eTSSOP-14, LLP-10 TSSOP-14, LLP-10
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Integrated Switch Buck Regulators (VINmax >25V) (cont.)
1.5A IOUT IOUT
Product 1.5A IOUT LM3100 LM78S40
LM26001
4.75 4.75
VOUT Options (Adj Range) (down 0.8V) (1.25 (1.25 3.3, (1.23 3.3, (1.23 (1.225 (1.225 3.3, (1.21 3.3, (1.21 3.3, (1.21 3.3, (1.23 3.3, (1.23 3.3, (1.23 3.3, (1.23 3.3, (1.21 3.3, (1.21
(kHz) MHz) (150 MHz)
Shutdown
Soft-Start
Power Good
Clock Sync
2.0A IOUT LM2592HV LM2593HV 2.5A IOUT LM5005 LM25005 IOUT LM2670 LM2673 LM2676 LM2596 LM2599 LM2576 LM2576HV IOUT LM2678 LM2679
LM26001 Operates Meets Load Dump Requirements
Typical Application
1.5A load current operation during cold crank 4.0V
PGOOD ENABLE SYNC FREQ-ADJ COMP
adjustable
LM26001
FPWM
Programmable soft start standby current
±1.5% from -40°C 125°C
Temp Range (°C)
Other Features/Comments SIMPLE SWITCHER synchronous regulator Integrated general purpose 1.5A diode; com, ind, versions available Integrated switcher, high efficiency sleep mode, 1.5% voltage accuracy SIMPLE SWITCHER regulator Error output delay, SIMPLE SWITCHER regulator 1.5% feedback voltage accuracy, emulated current mode, thermal protection 1.5% feedback voltage accuracy, emulated current mode, thermal protection output voltage accuracy, SIMPLE SWITCHER regulator Programmable current limit, output voltage accuracy, SIMPLE SWITCHER regulator output voltage accuracy, SIMPLE SWITCHER regulator SIMPLE SWITCHER regulator Error output delay, SIMPLE SWITCHER regulator SIMPLE SWITCHER regulator SIMPLE SWITCHER regulator output voltage accuracy, SIMPLE SWITCHER regulator Programmable current limit, output voltage accuracy, SIMPLE SWITCHER regulator
Packaging eTSSOP-20 DIP-16, eTSSOP-16 TO263-5, TO220-5, TO263-7, TO220-7, TSSOP-20 TSSOP-20 TO263-7, TO220-7, LLP-14, TO263-7, TO220-7, LLP-14 TO263-7, TO220-7, LLP-14, TO263-5, TO220-5, TO263-7, TO220-7, TO263-5, TO220-5, TO263-5, TO220-5, TO263-7, TO220-7, LLP-14 TO263-7, TO220-7, LLP-14
LM3100 1.5A, SIMPLE SWITCHER® Synchronous Step-Down Regulator
Features
Synchronous conversion efficient operation below VOUT architecture provides lightning-fast transient response Stable with ceramic capacitors Near-constant frequency operation from unregulated supplies external compensation reduces external component count Frequency adjustable
Soft-start VOUT down 0.8V 1.6A
Typical Application
4.6V Enable
LM3100
AGND PGND
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Boost Regulators Controllers (VINmax >25V)
Boost Switching Regulators Internal Switch
Product LM3578A LM78S40 LM5000 LM2577 LM2585 LM2586 LM2587 LM2588 VOUT Options (Max) 3.3, 3.3, 3.3, 3.3, Switch Current (mA) 1500 2000 3000 3000 3000 5000 5000 (kHz) 300, 600, 700, 1250 Enable Soft-Start Clock Sync
Boost Switching Regulators External Switch
Product LM3478 LM3488 LM3578A LM5020 LM5021
1The
2.95 2.95
Output Voltage
(kHz) 1000 1000 1000 1000
Shutdown
Soft-Start
Clock Sync
controller will enter low-power state below shutdown threshold 0.45V.
LM5020 100V Current Mode Controller
Features
Internal start-up bias regulator Error amplifier Precision voltage reference peak gate driver Non-Isolated High Input Voltage Flyback Converter
VOUT
UVLO
LM5020
COMP
High-voltage switching power supply topologies power management
Compensation
Other Features/Comments industrial temp. range, LM2578A Integrated general purpose 1.5A diode internal switch, thermal shutdown grade version, TO3-4 (LM1577); SIMPLE SWITCHER regulator SIMPLE SWITCHER regulator SIMPLE SWITCHER regulator SIMPLE SWITCHER regulator SIMPLE SWITCHER regulator
Temp Range (°C)
Packaging SOIC-8, DIP-8, DIP-16, TSSOP-16, LLP-14 SOIC-24, DIP-16, TO263-5, TO220-5, TO263-5, TO220-5, TO263-5, TO220-5, TO263-5, TO220-5, TO263-5, TO220-5,
Other Features/Comments industrial temp range, LM2578A duty cycle limit (LM5020-1 LM5020-2 respectively); programmable UVLO
Temp Range (°C)
Packaging MSOP-8 MSOP-8 SOIC-8, DIP-8, MSOP-10, LLP-10 MSOP-8, MDIP-8
LM3478 High Efficiency Low-Side N-Channel Controller
Features
Internal push-pull driver with peak current capability Current limit thermal shutdown Frequency compensation optimized with capacitor resistor Internal softstart Available MSOP-8 packaging
0.01 CBYP LM3478 Isen Comp FA/SD AGND PGND
High Performance Boost Regulator
F/10V 3.3H MBRS340T3 FDS6690A 0.01 RFB1 84.5k RFB2 10.0k
VOUT 12V, 1.5A COUT
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MOSFET Drivers
High-Current, Low-Side Gate Drivers Low-Side Topologies (Such Forward, Push-Pull)
Product LM5110-1 LM5110-2 LM5110-3 LM5111-1 LM5111-2 LM5111-3 LM5112 Type Dual Dual Dual Dual Dual Dual Single Range Peak Gate Drive Sink/ Source Current 5.0/3.0 5.0/3.0 5.0/3.0 5.0/3.0 5.0/3.0 5.0/3.0 7.0/3.0 Input Type Dual, independent Dual, independent Dual, independent Dual, independent Dual, independent Dual, independent Inverting, non-inverting Rise/Fall Time (ns)1 14/12 14/12 14/12 14/12 14/12 14/12 14/12 Turn On/Turn Propagation Delay Time (ns) 25/25 25/25 25/25 25/25 25/25 25/25 25/25
Half-Bridge Gate Drivers Synchronous Buck Topologies (Low-Side High-Side Drivers)
Product LM27222 LM5100 LM5100A
LM5100B LM5100C
(MOSFET)
Range
Peak Gate Drive Sink/ Source Current 3.2/4.5 1.8/1.6 3.0/3.0 2.0/2.0 1.0/1.0 1.8/1.6 3.0/3.0 2.0/2.0 1.0/1.0 1.8/1.6 1.8/1.6 1.8/1.6 1.8/1.2 1.4/1.3 1.0/1.0
Input Type Single Dual, independent Dual, independent Dual, independent Dual, independent Dual, independent Dual, independent Dual, independent Dual, independent Dual, independent Single Single Single Dual, independent Dual, independent
Pulse Width (ns)
Rise/Fall Time (ns)1 17/12 10/10 10/10 10/10 10/10 15/15 22/15 15/15 20/20
LM5101 LM5101A
LM5101B LM5101C
LM5102 LM5104 LM5105 LM5106 LM5107 LM5109A
products have UVLO feature. load
Negative Drive Capability
Enable
Other Features/ Comments Non-inverting outputs Inverting outputs inverting, non-inverting output Non-inverting outputs Inverting outputs inverting, non-inverting output Inverting non-inverting input single driver
Temp Range (°C)
Packaging SOIC-8, LLP-10 SOIC-8, LLP-10 SOIC-8, LLP-10 SOIC-8 SOIC-8 SOIC-8 LLP-6
Bottom/Top Driver Turn Propagation Delay Time (ns) 8/17 25/25 20/20 20/20 20/20 25/25 25/25 25/25 25/25 35/35 35/35 25/25 26/26 28/28 30/30
Gate Enable
Chip Enable
Internal Bootstrap Diode
Other Features/Comments Adaptive shoot-through protection, deadtime CMOS input threshold CMOS input threshold, HIP2100 compatible CMOS input threshold, HIP2100 compatible CMOS input threshold, HIP2100 compatible input thresholds inputs input threshold, HIP2101 compatible input threshold, HIP2101 compatible input threshold, HIP2101 compatible Independently programmable delay (rising edge) Adaptive deadtime with additional programmable delay input threshold, programmable dead time input threshold, programmable dead time input threshold, ISL6700 compatible input threshold
Temp Range (°C)
Packaging SOIC-8, LLP-8 SOIC-8, LLP-10 SOIC-8, LLP-10 SOIC-8, LLP-10 SOIC-8, LLP-10 SOIC-8, LLP-10 SOIC-8, LLP-10 SOIC-8, LLP-10 SOIC-8, LLP-10 MSOP-10, LLP-10 SOIC-8, LLP-10 LLP-10 MSOP-10, LLP-10 SOIC-8, LLP-8 SOIC-8, LLP-8
LM510x Family High-Speed Drivers
Typical Application
+10V 0.22 UVLO Driver (Integrated Bootstrap) 100V 0.22 LM50xx Controller Microprocessor Level Shift Load UVLO Driver
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Integrated Switch Buck Regulators Conrollers (VINmax 25V)
Integrated Switch Buck Regulators suitable product found look tables with higher
Product IOUT LM2736 IOUT LM2734 1.5A IOUT LM1572 LM2651 LM2653 2.5A IOUT LM2655 IOUT LM2650 LM2696 VOUT Options (Adj Range) (1.25 3.3, (2.4 1.8, 2.5, (1.24 (1.24 5.0) 3.3, (1.24 (1.25 (down 1.25) (kHz) 550, 1600, 3000 550, 1600, 3000 Shutdown Soft-Start Topology Non-synchronous Non-synchronous Non-synchronous Synchronous Synchronous Synchronous Synchronous Constant-On-Time
INmax
search website)
Switching Controllers Non-Isolated Buck Topologies External Switch
Product LM2636 LM2727 LM2737 LM2742 LM2743 LM2744 LM2745 LM2746 LM2747 LM2748 LM3475 LM3495 LM2648 VOUT Options (Adj Range) Down Down Down Down Down Down 1.26 VOUT Accuracy IOUT 40/20/20 (kHz) 1000 2000 2000 2000 2000 2000 1000 1000 1000 1000 1400 1500 Mode Voltage Voltage Voltage Voltage Voltage Voltage Voltage Voltage Voltage Voltage Hysteretic Emulated Peak Current Current (2x) voltage (2x) Shutdown SoftStart Power Good Lossless ISENSE
LM2747 Synchronous Buck Controller
Typical Application
3.3V RPULL-UP
BOOT
LM2734 Step-Down DC-DC Regulator
Typical Application
CBOOT
3.3V
RFB2
LM2747
BOOST 0.01
PWGD
FREQ/SYNC
ISEN PGND
VOUT 1.2V@16A
CClk RFADJ
SS/TRACK SGND
LM2734Y
31.6k
3.3V/1A
RFB1
Powergood
Clock Sync
Temp Range (°C)
Other Features/Comments Thermal shutdown, OVP, internal compensation soft-start Thermal shutdown, OVP, internal compensation, shutdown current, pulse-by-pulse output voltage accuracy Max. shutdown over full temp. range, typical Max. shutdown over full temp. range, typical Max. shutdown over full temp. range Max. shutdown over full temp. range compensation required, ultra-fast transient response, thermal shutdown
Packaging SOT23-6 SOT23-6, LLP-6 TSSOP-16 TSSOP-16, TSSOP-16 TSSOP-16, SOIC-24 eTSSOP-16
Clock Sync
Total Regulators
Other Features/Comments 5-bit digital control VOUT 0.6V Internal voltage reference; UVLO, 0.6V Internal voltage reference 4.2V UVLO, Tri-State® output during minimum time 2.7V UVLO, Tri-State output during tracking, precision threshold External VREF version LM2743 ultra-high accuracy; tracking, sequencing. Start into pre-bias loads, Min_ON time Start into pre-bias loads, Min_ON time high accuracy Start into pre-bias loads, Min_ON time, reference voltage over temp Start into pre-bias loads, Min_ON time Fast transient response, high efficiency, wide range, duty cycle capable Power supply tracking, pre-biased start-up, skip mode light load Sequential startup, OVP, UVLO, UVP, fault delay. dual-phase channel (interleaved); single-phase channels
Temp Range (°C)
Packaging TSSOP-20, SOIC-20, TSSOP-14 TSSOP-14 TSSOP-14 TSSOP-14 TSSOP-14 TSSOP-14 TSSOP-14 TSSOP-14 TSSOP-14 SOT23-5 TSSOP-16 TSSOP-56
LM3495 Accurate, Ultra-High Precision Buck Regulator
Features
Input voltage from 2.9V Adjustable output from 0.6V 5.5V Feedback accuracy: over temperature Switch node fault protection Hiccup mode current limit protection reduced thermal design Internal soft-start with tracking capability
Shutdown Signal CSYN
VLIN5 BOOST
Typical Application
12V±10%
MODE
FPWM
FREQ/SYNC SW/CSH
RFRQ
TRACK
RLIM
ILIM
1.2V
LM3495
COMP/SD
RFB1
PGND SGND
RFB2
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Boost Regulators (VINmax 25V)
Boost Regulators suitable product found look tables with higher
Product LM2733X LM2733Y LM2623 LM2698 LM2731X LM2731Y LM2622 LM2623A LM2700 LM2621 LM3224 VOUT Options (Max) 17.5) 17.5) Switch Current (mA) 1000 1000 1200 1350 1500 1500 1650 2200 3600 2850 2600 (kHz) 1600 2000 600, 1250 1600 600, 1300 2000 600, 1250 2000 1250 Enable SoftStart
INmax
search website) Temp Range
Other Features/Comments Current-mode converter Current-mode converter Ratio-adaptive gated oscillator 2.5% output voltage accuracy Current-mode converter Current-mode converter converter Ratio-adaptive gated oscillator converter Constant duty cycle gated oscillator External comp, ceramic caps
Packaging SOT23-5 SOT23-5 MSOP-8, LLP-14 MSOP-8 SOT23-5 SOT23-5 MSOP-8, MSOP-8, LLP-14 TSSOP-14, LLP-14 MSOP-8, MSOP-8
LM2731 Boost Converters with Internal Switch
Features
DMOS switch ("X"), ("Y") switching frequency RDS(ON) DMOS Switch current 1.8A Wide input voltage range 2.7V-14V shutdown current
L1/10 VOUT (Typ)
Typical Application
MBR0520
SHDN
LM2731
SHDN
13.3K
Voltage References
Voltage References
Product LM4040 LM4041 LM4050 LM4051 LM285/385 LMV431 LM4120 LM4121 LM4125 LM4132 LM4140 Type Shunt Shunt Shunt Shunt Shunt Shunt Series Series Series Series Series Voltages 2.5, 4.096, 5.0, 8.2, 1.22, (1.24 2.0, 2.5, 4.096, 5.0, 8.2, 1.22, (1.24 1.23, 2.5, (1.24 5.3) 1.24, (1.24 1.8, 2.048, 2.5, 3.0, 3.3, 4.096, 1.25, (1.21 2.0, 2.5, 1.8, 2.048, 2.5, 3.0, 3.3, 4.096 0.5, 0.6, 0.7, 0.75, 0.8, 0.9, 1.0, 1.25, 2.0, 2.5, 4.1, Accuracy 0.1, 0.2, 0.5, 0.1, 0.2, 0.5, 0.1, 0.2, 0.1, 0.2, 1.0, 2.0, 2.5, 1.0, 0.2, 0.2, 0.2, 0.05, 0.1, 0.2, 0.4, TEMPCO (ppm/°C) VDROPOUT Iq/IOUT Current A/15 A/15 A/15 A/15 A/20 A/15 A/±5 A/±5 A/20 Packaging SC-70, SOT23-3, TO92-3, SC-70, SOT23-3, TO92-3, SOT23-3, SOT23-3, SOT23-3, SOIC-8, TO92-3, TO46-2, SOT23-5, TO92-3 SOT23-5, SOT23-5, SOT23-5 SOT23-5 SOIC-8
Highest Precision Over Broad Temperature Range
High-Precision References
National Thaler
LMV431 LM4040/41
Tempco (ppm/°C)
LM4050 LM4120
LM431 LM385, LM336
LM4132 Series
0.05
VRE41xx
LM4140
Initial Accuracy
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Linear Regulators (VINmax >7V)
Linear Regulators suitable product found look tables with higher
VOUT Product LM2936 LM2936HV LP2950C/AC LP2951C/AC LM2931/A/C LM3480 LM3490 LM2930 LM330 LM9076 LP2952/A LP2953/A/AM LP2954/A LP2956/A LP2957/A LM9070 LM9071 LP2960/A LM2937 LM2940/40C LM2941/41C LM1086 LM1085 LM1084 LM3411
2Those
INmax
search website) VOUT Tolerance (%)4 0.5, 0.5, 0.75 (mA)1 0.015 0.015 0.12 0.12 1.0F 0.025 0.17 0.17 0.15 0.25 0.125
Output Current
1.24 1.24 1.24 1.24 1.24 1.24 1.25 23.5 1.25 23.5 1.25 23.5
Other Available Voltages 2.85, 3.45
4.75
VDROPOUT (max)3 0.45 0.45 1.5F4 1.5F4 1.5F4
Shutdown
Error Flag
1.5A Controllers
denotes value full temp range denotes typical value, otherwise values maximum 25°C (typically quiescent current given minimum load) regulators originally designed used with ceramic output caps still stable using ceramic capacitors COUT connected series with small resistor simulate needed ESR. 3Dropout voltage given full load. denotes value full temperature range, denotes typical value; otherwise values maximum 25°C denotes value full temp range
Ceramic Caps Stable2
Other Features/Comments Reverse polarity protection -15V, transient protection +60V/-50V Reverse polarity protection -15V, transient protection +60V/-50V Reverse polarity protection -15V, transient protection +60V/-50V Reverse polarity protection -6V, transient protection +40V/-12V Reverse polarity protection -12V, transient protection +40V Reverse polarity protection -15V, transient protection +60V Reverse polarity protection -20V Reverse polarity protection -20V, aux. comparator Reverse polarity protection -20V, output MSOP package only Reverse polarity protection -20V, comparator, aux. output Reverse polarity protection -20V Reverse polarity protection -26V, transient protection +60V/-50V, keep-alive pin, good immunity Reverse polarity protection -26V, transient protection +60V/-50V, good immunity Reverse polarity protection -20V, aux. comparator Reverse polarity protection -15V, transient protection +60V/-50V Reverse polarity protection -15V, transient protection +60V/-50V Reverse polarity protection -15V, transient protection +60V/-50V User-selected dropout voltage
Temp Range
Packaging MSOP-8, SOT223-4, TO252-3, SOIC-8, TO92-3, MSOP-8, SOT223-4, TO252-3, SOIC-8, TO92-3, TO252-3, TO92-3 MSOP-8, MDIP-8, LCC-20, TO5-8, CERDIP-8, SOIC-8, micro SMD-6, MSOP-8, TO220-3, TO263-3/5, TO92-3, SOT23-3, SOT23-5, TO220-3, TO263-3, TO220-3, TO263-5, MSOP-8, SOIC-8 TSSOP-16, MDIP-14, TSSOP-16, MDIP-16, MSOP-8, TO220-3, TO263-3 TSSOP-16, MDIP-16 TO220-5 TSSOP-20, TO220-7 TO220-5, TO263-5 SOIC-16 SOT223-4, TO220-3, TO263-3, SOT223-4, TO220-3, TO263-3, LLP-8, CERDIP-16, TSSOP-16, TO220-5, TO263-5, LLP-8, TSSOP-16, CERDIP-16 LLP-8, TO220-3, TO263-3 TO220-3, TO263-3, TO220-5, TO263-5 SOT23-5,
LM9076 Ultra-Low Quiescent Current Regulator with Delayed Reset Output
Typical Application
Unregulated Voltage Input VOUT Regulated Voltage Input
LM9076S
RESET
Delayed Reset Input COUT
CDELAY
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Linear Regulators (VINmax >7V) (cont.)
Dropout Linear Regulators (LDOs) Positive Output
suitable product found look tables with higher VINmax search website) Product LM4120/A LM4121/A LP2978/A LP2980/A LP2982/A LP2981/A LP2985/85A/ LP2986/A LP2987/A LP2988/A LP2992/92A LP2989/A/LV LP8345 LP38691 LP38693 LM1117 LP3878 LM3940 LMS8117A LP8340 LP38690 LP38692 LMS1587 LMS1585A LP2975/A LM3460 LM3411 footnotes page Controllers Output Current VOUT 1.21 1.24 15.5 1.24 15.5 1.25 1.25 1.25 1.25 13.8 13.75 1.25 1.25 1.25 1.25 5.75 1.25 5.75 1.24 Other Available Voltages 2.0, 1.25 VDROPOUT (max)3 0.21 0.21 0.15 0.15 0.15 0.25 0.35 0.23 0.23 0.23 0.575 0.425 0.335 0.25 0.25 0.475 1.25 0.45 0.45
2.6, 2.7, 2.9, 3.1, 3.2, 3.5, 3.6, 3.8, 4.0, 4.5, 2.6, 3.6, 3.8, 4.0, 4.5, 4.7, 2.7, 2.9, 3.1, 3.2, 3.6, 3.8, 4.0, 4.5, 1.5, 1.8, 2.0, 2.4, 2.6, 2.7, 2.8, 2.85, 2.9, 3.1, 3.2, 3.5, 3.6, 3.8, 4.0, 4.5, 4.7, 4.8, 5.3, 3.2, 2.7, 2.85, 3.2, 2.85, 3.6, 2.85 2.65
LP38693 Dropout CMOS Linear Regulator
Features
2.0% output accuracy (25°C) dropout voltage: (typ, VOUT) Wide input voltage range (2.7V 10V) Precision (trimmed) bandgap reference Guaranteed specs -40°C +125°C
Typical Application
VOUT VOUT
LP38693
VOUT Tolerance (%)4 0.2, 0.2, 0.75, 1.25 1.25 0.75
(mA)1 0.25 0.25 0.125 0.095 0.095 0.095 0.095 0.12 0.12 0.12 0.095 0.175 0.100F 0.100F 0.100F 0.100F 0.24 0.125 0.125
Shutdown
Error Flag
Ceramic Caps Stable2
Other Features/Comments Low-noise, ceramic output capacitor noise noise Programmable time delay, error flag noise noise Stable with ceramic capacitors, Stable with ceramic capacitors, noise Sense package Stable with ceramic capacitors, Stable with ceramic capacitors, User-selected dropout voltage User-selected dropout voltage User-selected dropout voltage
Temp Range
Packaging SOT23-5, SOT23-5, SOT23-5 micro SMD-5, SOT23-5, micro SMD-5, SOT23-5, micro SMD-5, SOT23-5, micro SMD-5, SOT23-5, LLP-8, MSOP-8, SOIC-8 LLP-8, MSOP-8, SOIC-8 LLP-8, MSOP-8, SOIC-8, LLP-6, SOT23-5 LLP-8, MSOP-8, SOIC-8, LLP-6, TO252-3 TO252-3, LLP-6 SOT223-5, LLP-6 PSOP-8, LLP-8
LLP-8, SOT223-4, TO220-3, TO263-3, CERDIP-16, TSSOP-16 SOT223-4, TO252-3, LLP-6, TO252-3 TO252-3, LLP-6 SOT223-5, LLP-6 TO220-3, TO263-3 TO220-3, TO263-3, SOIC-8, SOT23-5, SOT23-5,
Dropout Linear Regulators (LDOs) Negative Output
Output Current Product LM2990 LM2991 Other Available Voltages -5.2, -12, VDROPOUT (max)3 1.0F 1.0F VOUT Tolerance (%)4 (mA)1 Shut-down Temp Range Packaging TO220-3, TO263-3, TSSOP-16, CERDIP-16 TO220-5, TSSOP-16, TO223-5, CERDIP-16,
footnotes page
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Linear Regulators (VINmax <7V)
Dropout Linear Regulators (LDOs) Positive Output
suitable product found look tables with higher VINmax search website) Output Current VOUT Product LP3983 LM4140 LM4132 LP3992 LMS5213 LMS5214 LP5900 LP2983/83A LP3984 LP3985 LP3987 LP3988 LP3990 LP3995 LP3999 LP5951 LP8358 LP3997 LP3981 LP3982 LP3871 LP3874 LP3879 LP3881 LP3891 LP38841 LP3852 LP3855 LP3872 LP3875 LP3882 LP3892 LP38842 LP3853 LP3856 LP3873 LP3876 LP3883 LP3893 LP38843 LP38856 LP38859 1.25 1.215 0.56 1.215 1.215 0.56 1.215 1.215 Other Available Voltages 1.0, 1.25, 2.0, 2.0, 2.6, 2.2, 0.9, 2.0, 2.9, 2.6, 2.7, 2.85, 2.9, 3.1, 3.2, 4.7, 4.75, 2.6, 2.85 1.85, 2.6, 2.85 0.8, 1.35 1.6, 1.9, 1.6, 1.7, 1.875, 1.9, 2.0, 2.1, 2.2, 2.4, 1.3, 2.7, 2.83, 3.03 2.77, 2.82 1.05 1.12 VDROPOUT (max)3 0.16 0.15 0.12F 0.1F 0.1F 0.15F 0.12 (typ) 0.1F 0.1F 0.2T 0.2F 0.22F 0.12 0.075 0.28 0.28 0.45 0.45 0.17 0.32 0.115 0.45 0.45 0.27 0.65 0.21 0.24(T), 0.45(F) 0.24(T), 0.45(F)
1.5A
footnotes page
VOUT Tolerance (%)4 0.05, 0.1, 0.2, 0.4, 3.5F 3.5F 3(F) 3(F)
(mA)1 0.021 0.23 0.05 0.75 0.13 0.05 0.095 0.125F 0.15F 0.12F 0.12F 0.08 0.15F 0.15F 0.029T 0.18 0.1F 0.12F 0.27F 24(F) 24(F)
Shutdown
Error Flag
Ceramic Caps Stable2
Other Features/Comments quiescent current standby applications Ultra-low noise; custom voltages available from 0.5V 4.5V Low-voltage output Active shutdown bypass capacitor. VRMS, PSRR kHz, COUT 0.47 noise, tantalum output capacitor noise, ceramic output capacitor Sleep mode control Power-good flag output Supports COUT noise, fast turn-on time, optimal analog loads Active shutdown; noise, fast turn-on, optimal quiescent current, fast turn-on time, excellent line load transient response delay Delay delay time using capacitor noise noise, adjustable output Sense Sub-bandgap Ideal conversion Ideal conversion Ideal conversion Sense Sense Ideal conversion Ideal conversion Ideal conversion Sense Sense Ideal conversion Ideal conversion Ideal conversion conversion, Stable with ceramic capacitors conversion, Stable with ceramic capacitors, Soft-Start
Temp Range
Packaging micro SMD-5 SOIC-8 SOT23-5 SOT23-5 SC70-5, SC70-5 micro SMD-4, LLP-6 SOT23-5 micro SMD-4, SOT23-5, micro SMD-5, SOT23-5, micro SMD-5 micro SMD-5, SOT23-5, micro SMD-4, SOT23-5, LLP-6 micro SMD-5, LLP-6 micro SMD-5 SOT23-5, SC70-5 SOT23-5 MSOP-8 LLP-6, MSOP-8 LLP-8, MSOP-8 SOT223-5, TO263-5, TO220-5 SOT223-5, TO263-5, TO220-5 PSOP-8, LLP-8 TO263-5, TO220-5 TO220-5, TO263-5 TO263-5, TO220-5, PSOP-8 SOT223-5, TO263-5, TO220-5 SOT223-5, TO263-5, TO220-5 SOT223-5, TO263-5, TO220-5 SOT223-5, TO263-5, TO220-5 TO220-5, TO263-5 TO220-5, TO263-5 TO263-5, TO220-5, PSOP-8 TO220-5, TO263-5 TO220-5, TO263-5 TO220-5, TO263-5 TO220-5, TO263-5 TO220-5, TO263-5 TO220-5, TO263-5 TO263-5, TO220-5 TO263-5, TO220-5 TO263-5, TO220-5
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Inductive Buck Regulators (VINmax <7V)
Synchronous Regulators
Product IOUT LM3670
LM3673
VOUT Options (Adj Range) 1.2, 1.5, 1.6, 1.8, 1.875, 2.5, and, (0.7 2.5) Adj, 1.2, 1.5, 1.8, 1.875 1.3, 1.5, 1.05, 1.3, 1.5, 3.6) 1.8, 1.83, 1.87, 1.92 1.05, 1.25, 1.35, (1.5 3.6)
(kHz) 1000 2000 1000 1000 1000 1000 1000
Clock Sync
Modes PWM/PFM PWM/PFM Linear power selectable selectable mode Buck selectable PWM/PFM only
Temp Range (°C) (-30 SOT23-5 micro SMD-5 micro SMD-10 micro SMD-10 micro SMD-10 micro SMD-10 micro SMD-10 TSSOP-14, micro SMD-10 micro SMD-5, SOT23-5 micro SMD-5, SOT23-5
IOUT LM2608 LM2612 LM2614 LM2618 IOUT LM3661 IOUT LM2619 IOUT LM3671 LM3674 IOUT LM2852 3.0, 3.3, 2.5, 1.8, 1.5, 1.2, 500, 1500 Thermal shutdown eTSSOP-14 1.2, 1.25, 1.375, 1.5, 1.6, 1.8, 1.875, 2000 2.5, 2.8, 3.3, (1.1 3.3) 1.2, 1.25, 1.375, 1.5, 1.6, 1.8, 1.875, 2000 2.5, 2.8, 3.3, (1.1 3.3)
Non-Synchronous Regulators
IOUT
LM2830
(0.6 4.5)
1600, 3000
3300
Internal softstart
SOT23-5, LLP-6
1.5A IOUT
LM2831
(0.6 4.5V)
550, 1600, 3000
3300
Internal softstart
SOT23-5, LLP-6
IOUT
LM2832
(0.6 4.5V)
550, 1600, 3000
3300
Internal softstart
LLP-6, eMSOP-8
LM3673 MHz, Step-Down DC-DC Converter
Typical Application
2.7V 5.5V VOUT COUT
LM2832 High-Power Density Switching Regulator
Typical Application
5.5V
P-FET
VOUT Down 0.6V
Microcontroller, Lower power FPGA, ASIC, Memory, CPLD, Digital logic
LM3673
LM2832
PGND
Inductive Buck Controllers (VINmax <7V)
Switching Controllers Non-Isolated Buck Topologies
Product LM1770
LM1771
4.65
VOUT Options (Adj Range) Down Down 0.8375 1.60
VOUT Accuracy
IOUT
(kHz) 1000 1000
Mode Voltage
Shutdown
SoftStart
Synchronous Rectification
Power Good
Lossless ISENSE
Clock Sync
Total Regulators
Other Features/ Comments compensation required compensation required Complies with Intel's VRD10 spec. 6-bit VID. phase operation, softstop
Single Switching Controllers
LM27262
LM1771 Synchronous Buck Controller with Precision Enable
Typical Application
VOUT
LM1771
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Switched Capacitor Converters Buck Regulators (VINmax <7V)
Switched Capacitor Regulators suitable product found look tables with higher
Product LM2685 LM2686 LM2687 LM2760 LM2770 LM2771 LM2787 LM2797 LM2798 2.85 2.85 VOUT +5.0 (reg) -5.0 (unreg) (-1.5V -5.2V) 1.2/1.5 1.2/1.57 (-1.5V -5.2V) 1.5, 1.8, IOUT (mA) 50/15 (kHz) 1100 Other Features/Comments ripple, independent shutdown pins ripple, shutdown noise, shutdown Short circuit thermal protection Soft-start, sleep-mode, pin-selectable voltage scaling ripple, noise fixed frequency operation noise, shutdown Fast turn-on time Output-OK battery-OK flags
INmax
search website) Temp Range (°C)
Packaging TSSOP-14, TSSOP-14 LLP-8, MSOP-8, SOT23-5 LLP-10 LLP-10 micro SMD-8 MSOP-10 MSOP-10
Fractional-Gain Switched Capacitor Converters
Product LM3350 LM3351 2.5, 2.5, 3.65, 3.65, IOUT (mA) (kHz) Other Features/Comments Shutdown pin, 3/2x (boost), 2/3x (buck) Shutdown pin, 3/2x (boost), 2/3x (buck) Temp Range (°C) Packaging MSOP-8, MSOP-8,
Fixed-Gain Switched Capacitor Doublers Inverters
Product LM2662 LM2663 LM2664 LM2665 LM2681 LM2765 LM2766 LM2767 LM2780 LM2781 IOUT (mA) (typ) (typ) (kHz) 10/75 Other Features/Comments Frequency select, doubler/inverter (2x, -1x) Shutdown pin, doubler/inverter (2x, -1x) Shutdown pin, inverter (-1x) Shutdown pin, doubler (2x) supply current, doubler (2x) Shutdown pin, doubler (2x) Shutdown pin, doubler (2x) supply current, doubler (2x) flying caps output ripple, inverter (-1x) flying caps output ripple, small solution, inverter (-1x) Temp Range (°C) Packaging SOIC-8, SOIC-8, SOT23-6, SOT23-6, SOT23-6 SOT23-6, SOT23-6, SOT23-5 micro SMD-8 micro SMD-8
Fractional-Gain Switched Capacitor Converters
Features
average efficiency over Li-Ion battery range mode light load efficiency (<30
Efficiency
LM2771 Efficiency
IOUT
Extremely standby mode ±1.7% output voltage accuracy Excellent load line transients
Input Voltage
Boost Buck Boost Regulators (VINmax <7V)
Automatic Buck Boost Switched Capacitor Regulators Internal Switch
Product LM2760 LM3352 LM3354 LM3355 VOUT 2.5, 3.0, 1.8, 3.3, 4.1, IOUT (mA) (kHz) 1000 1000 1000 Temp Range (°C) Packaging SOT23-5 TSSOP-16 MSOP-10 MSOP-10
Boost Inductive Switching Regulators Internal Switch
Product LM2705 LM2703 LM2704 LM3310 LM3311 LM3224 VOUT Options (Max) Switch Current (mA) 2000 2000, 2600 (kHz) fixed time fixed time fixed time 660, 1280 660, 1280 615, 1250 Enable SoftStart Other Features/Comments Current-limited fixed off-time Current-limited fixed off-time Current-limited fixed off-time amp, Ch+LDO, amp, External comp, ceramic caps Temp Range (°C) Packaging SOT23-5 SOT23-5 SOT23-5 LLP-24 LLP-24 MSOP-8
Boost Switched Capacitor Regulators Internal Switch
Product LM2750 LM2751 LM2753 VOUT Options (Max) (3.8 5.2) 4.5, Switch Current (mA) IOUT (kHz) 1700 Enable SoftStart Clock Sync Other Features/Comments Inductorless regulated boost converter driver Flash-LED driver Temp Range (°C) Packaging LLP-10, LLP-10 LLP-10
(4.5V) (5V) 725/300/37/9.5
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Multi-Output Regulators
Dual Switching Regulators Internal Switch
Product LM2716 Description buck boost regulator single Dual buck Channel Output 3.3V 1.8A (buck) Fixed 2.2A Channel Output 20V) 3.6A switch (boost) 3.2A (kHz) 2000 Internal MOSFET RDSON 0.12 boost, 0.16 buck SoftStart Enable Other Features/ Comments Individual enable soft-start pins each channel; external compensation versions: Buck 3.3V Fixed Adj. Synchronous Rectification Temp Range (°C) Packaging TSSOP-24
LM2717
0.16
TSSOP-24
LM3370
Dual buck programmable
1.8V 3.3V
PFET 0.4; NFET 0.25
LLP-16
Dual Multiple Devices
Product LP2967 Type Dual IOUT (mA) 150, VOUT Accur.4 Available Voltages 1.8/2.5, 1.8/3.3, .5/2.8, 2.5/3.3, 2.6/2.6, .8/2.8, 2.8/3.0 2.8/3.3 1.8/1.8, 1.8/3.0, .8/3.3, 2.5/2.5, 2.8/2.8, 2.8/3.0, 3.0/3.0, 3.3/2.5, 3.3/3.3, 3.3/3.6, 3.6/3.6, 5.0/5.0 1.8/2.5, 1.8/2.8, 2.5/2.5, 2.5/2.8, 2.6/2.6, 2.8/2.8, 2.85/2.85, 2.9/2.9, 3.0/2.8, 3.0/3.0, 3.1/3.1, 3.1/3.3, 3.3/3.3 0.8/3.3, 1.5/2.5, 2.8/2.8, 3.0/3.0, 3.0/3.3, 3.3/0.8, 3.3/3.3 (2x) main tracking VDROPOUT (Max)3 0.22 (mA)1 0.34 Shut down Ctrl Error Flag Ceramic Caps Stable2 Other Features/ Comments noise Temp Range (°C) Packaging MSOP-8, micro SMD-8, MSOP-8
LP2966
Dual
150,
0.19
0.45
LP3986
Dual
150,
0.1F
0.2F
micro SMD-8
LP3996/
Dual
LP5996
300,
0.55F
0.1F
LP5996 does have Keep-alive pin; ideal automotive Watchdog, keep-alive pin, input transient protection
LLP-10
LM9072
Dual
350,
2%/.5%F
TO263-9,
LM9073
Dual
700,
(2x)
TO220-11,
footnotes page Additional LDOs page
Integrated Power Management Units
Integrated Power Management Units (PMUs)
Product
LP3905 LP3906
Description/Key Functions Power Management Unit power handheld applications Programmable Power Management Unit with compatible interface Power Management Unit application processors, buck regulators with Dynamic Voltage Management (DVM), drop regulators special RTC) compatible interface Power Management Unit application processors, buck with Dynamic Voltage Management (DVM), LDOs, back battery charger, GPIOs, compatible interface PowerWisePMU, buck, LDOs
Output Voltage Range LDOs: 3.3, Bucks: LDOs: 3.5, Bucks: LDO: Buck 2.0; Buck
IOUT (mA) (LDO), (Buck) (LDO), 1500 (Buck) (LDO) (Buck)
Output Accuracy LDO, Buck LDO, Buck LDO, Buck
VDROPOUT
(mV)
Temp Range (°C)
Packaging LLP-14 LLP-24 LLP-48
LP3970
LP3971
LDOs: 3.3, Bucks:
150, 300, (LDO), 1600 (Buck) 100, (LDO), (Buck)
LLP-40
LP5550
LDO1: 2.2, LDO2: 3.3, LDO3: 1.35, Buck
LLP-16
Efficient LP3906 Provides Flexibility with Digital Programmability
Features
Compatible with advanced applications processors FPGAs LDOs powering Internal processor functions I/Os High speed serial interface independent control device functions settings Precision internal reference Thermal overload protection
5.5V
LP3906
Buck
1.2V 1500
VOUT 0.8V 2.0V
FPGA/Processor
Core Voltage
Programmable buck regulators support core other high current rails Programmable LDOs support internal processor functions peripherals
Buck
3.3V 1500
VOUT 1.0V 3.5V
Voltages
VOUT 1.0V 3.5V
1.8V
0.47
VOUT 1.0V 3.5V
3.3V
0.47
Auxiliary Voltage Interface
Control
independent control LP3906 peripherals
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Supervisors Sequencers
Sequencers
Product
LM3880
Timing Options (ms)
Regulators Able Sequence
Input Voltage
Input Voltage
PowerUp
PowerDown
Enable
Package SOT23-5
Other Features/Comments Custom timing options available along with customer power-down sequences
Voltage Supervisors
Product Singles LM3722 LM3723 LM3724 LP3470 LM3700 LM3701 LM3702 LM3703 LM3704 LM3705 LM3706 LM3707 LM3708 LM3709 LM3710 LM3711 LM3712 LM3713 LM8364 LM8365 LM809 MCP809 LM810 MCP810 LMS33460 Duals LMC6953
2Low
Active Reset High (open drain) High High High High High High High (open drain) High High (open drain) (open drain)
Reset Timeout Period (ms) external cap. 1.4, 200, 16005 1.4, 200, 16005 11.4, 200, 16005 1.4, 200, 16005 1.4, 200, 16005 1.4, 200, 16005 11.4, 200, 16005 1.4, 200, 16005 1.4, 200, 16005 1.4, 200, 16005 11.4, 200, 16005 1.4, 200, 16005 1.4, 200, 16005 1.4, 200, external cap. external cap. 16005
0.65 0.65
Manual Reset
Line Output2
Comparator3
Watchdog4
Temp Range (°C)
Packaging SOT23-5 SOT23-5, SOT23-5, SOT23-5 micro SMD-9 micro SMD-9 micro SMD-9 micro SMD-9 micro SMD-9, MSOP-10 micro SMD-9, MSOP-10 micro SMD-9 micro SMD-9 micro SMD-9 micro SMD-9 micro SMD-9, MSOP-10 micro SMD-9, MSOP-10 micro SMD-9 micro SMD-9 SOT23-5 SOT23-5 SOT23-3, LLP-6, SOT23-3 SOT23-3, SOT23-3 SC-70 SOIC-8
1Most parts monitor additional voltage rails 0.5V 2.0V 2.2V 5.0V range.
line output: This early power failure warning indicator goes when supply voltage drops value which higher than reset threshold voltage. additional comparator with 1.225V threshold detector used power fail warning flag monitor second power supply voltage. 4Factory programmed watchdog timeout periods 6.2, 102, 1600, 25,600 available. Some these available upon request. 5Factory programmed options. Some these options available upon request. 6Watchdog timer dedicated watchdog output (WDO) pin. 7Open drain output available upon request, minimum order apply.
3This
Power Solutions
Power Distribution Over-Current Protection Switches*
Product LM3525-H LM3525-L LM3526-H LM3526-L LM3543-H LM3543-L LM3544-H LM3544-L Ports/Power Outputs Single Single Dual Dual Triple Triple Quad Quad Switch Resistance 0.08 0.08 0.09 0.09 0.09 0.09 Continuous IOUT Output) Shutdown Enable Control (Per Output) Active high Active Active high Active Active high Active Active high Active Temp Range (°C) Packaging SOIC-8 SOIC-8 SOIC-8, SOIC-8, SOIC-16 SOIC-16 SOIC-16 SOIC-16
Note: products support fault flag, soft-start, current limiting, UVLO. *All products compliant with recognized components.
Power-over-Ethernet Solutions
Product LM5020 Description DC-DC converter Range Current Draw Winding Reference Accuracy ±2.0 Reference Designs Eval Boards Other Features/Comments Error amplifier non-isolated designs; leading edge blanking; high current gate drive Includes LM5020 features plus 80V, line connection switch associated control sequencing fully IEEE 802.3af compliant interface features LM5070 plus auxiliary power interface Temp Range (°C) Packaging MSOP-10, LLP-10 TSSOP-16, LLP-16
LM5070
Integrated single-chip solution: interface DC-DC converter Integrated single-chip solution: interface DC-DC converter Integrated single-chip solution: interface DC-DC converter
±2.0
LM5071
±2.0
available: highest efficiency simplest implementation available: single dual outputs
TSSOP-16
LM5072
100*
±2.0
100V swap MOSFET, adjustable current limit, auxiliary power interface
TSSOP-16
*1.5V part signature mode; part classification mode; DC-DC converter operational (UVLO release)
Integrated Powered Device
Features
Fully Compliant IEEE 802.3af interface Versatile auxiliary power options minimum auxiliary power operating range 100V maximum input voltage rating Programmable current limit
Auxiliary Power Source min.) +AUX +POE
LM5072 Typical Application
LM5072
VOUT
IEEE 802.3af Interface
UVLO Signature Classification
DC-DC Converter Swap Controller
In-Rush Fault Current Limiting Current Mode Controller
Feedback
-POE
-AUX
0.7, 100V MOSFET
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Battery Charging Solutions
Battery Charging Solutions
Product Description LM3655 LM3658 Charge control protection Range 18(Note1) Charge Current 1.4A Charge Modes Temp Termination Range Voltages Other Features/Comments (°C) Output undervoltage short circuit protection Battery temperature monitoring, mode Battery temperature monitoring, selectable timer Packaging micro SMD-25 LLP-10
Single cell Li-Ion Li-Polymer Integrated Battery Chargers (Internal Pass Transistor) Precharge, full 4.1, 4.16 rate, trickle charge Prequal, top-off, maintenance Prequal, top-off, maintenance Prequal, top-off, maintenance Prequal, maintenance
USB/AC adapter with internal (Wall) switch, Battery charger 4.35 (USB)
LM3658-A USB/AC adapter with internal (Wall) switch, Battery charger 4.35 (USB) LM3658-B USB/AC adapter with internal (Wall) switch, Battery charger 4.35 (USB) LP3947 Single source wall adapter, External FET, I2C-compatible interface programmability
LLP-10
Battery temperature monitoring, mode 5-hour timer Battery temperature monitoring, mode, safety timer charge status indicator; Li-Ion only 0.5% tolerance, charge modes plus fault detection 0.7% 1.2% tolerance, low-voltage battery detection
LLP-10
4.1,
LLP-14
Li-Ion Battery Charging Controllers (External Pass Transistor) LM3621 Charging controller single cell (note2) (note2) Conditioning, fast, 4.1, top-off, monitor, maintenance 4.1, 4.2, 8.2. SOIC-16
LM3622
Charging controller cells 24.0
SOIC-8,
Single cell Li-Ion Battery Charging Subsystems (Multi-Function Charging ICs) LP3941A Complete power management unit with integrated Li-Ion battery (Note3) charger, LDOs, comparators, driver outputs I2C-compatible interface configuration Prequal, maintenance 4.1, LLP-48
Charging input voltage 18V. VCC, 6.3V Dependent upon external transistor used range 4.5V 12V; operating range (battery connected) 4.5V 3.0V 5.5V
LM3658-B Dual Source USB/AC Chemistry Charger
Features
Integrated power FETs with thermal regulation Charges from either wall adapter power source with automatic source selection 1000 charge currents using wall adapter mode with source current automatically invoked when battery absent wall adapter connected
USBpwr 4.5V CHG_IN 4.5V
Typical Application
BATT Battery Pack
LM3658-B
USB_sel EN_b
Iset Stat1 Stat2
Switching Regulators RFPA
Switching Buck Regulators Power Amplifiers
Product LM3200 LM3202 LM3203 LM3204 LM3205
LM3207
VOUT (0.8 3.6V) (1.3 3.16) (0.8 3.6) (0.8 3.6) (0.8 3.6) Adj. (0.8 3.6) (0.8 3.6)
IOUT (mA) 300/500
Bypass Modes Forced automatic None Forced Forced automatic None None None
Soft-Start enable enable enable enable enable
Temp Grade
Packaging micro SMD-10 micro SMD-8 micro SMD-10 micro SMD-10 micro SMD-8, LLP-10 micro SMD-9 micro SMD-8
LM3208
1Integrated
Note: products synchronous switchers with shutdown capability VREF 2.88V
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ASSP Power White Drivers
Switched Capacitor White Drivers
Product LM2750 LM2751 LM2753 LM2754
Number Voltage Individual ILED Range Current sourced Outputs (mA) (kHz) Other Features/Comments Voltage Voltage Voltage Current 1700 1000 1.5x gains Flash continuous, pulsed Flash driver with Time-out protection, ensures synchronization with Power Amplifier pulse Soft-start, noise
Ambient Temp Range
Packaging LLP-10, LLP-10 LLP-10 LLP-24
LM2793 LM2794/95 LM2796 LM27951 LM27952 LM27953 LM27961
Current Current Current Current Current Current Current
LLP-10 Thin micro SMD-14 Thin micro SMD-18 LLP-14 LLP-14 micro SMD-18 micro SMD-18
Active shutdown (94) active high shutdown (95) LEDs controlled groups: LEDs; soft-start Common cathode current source topology, 0.2% current matching Common anode current sink topology, 0.2% current matching Common anode current sink topology, 0.6% current matching sets: common cathode current sink topology, common anode current source topology, sets enables current setting resistors-0.6% current matching both
LM27964
Current
sets outputs pins, pins, pin; common cathode, current sink topology; control I2C-compatible interface Common anode current sink topology, 0.3% current matching, compatible interface Common anode current sink topology, 0.3% current matching, compatible interface
LLP-24
LM27965 LM27966
Current Current Voltage
1270 1270
LLP-24 LLP-24 LLP-14
LM3570
constant current outputs plus regulated constant voltage output (4.35V) driving additional LEDs
LM27965 Dual Display White Driver with Compatible Brightness Control
Typical Application
Main Display Display Indicator
POUT COUT
LM27965
Compatible Interface SDIO RESET
ISET RSET
Capacitors: C1608X5R1A105K equivalent
ASSP Power White Drivers
Inductive White Drivers
Product LM2623 LM2623A LM2704 LM2705 LM2707 LM2704 LM2731 LM2733 LM3224 LM3500 LM3501 LM3502 LM3503 LM3519 LM3520 LM3551 LM3552 LM3557
3Junction
Range
Number LEDs More than More than More than More than String OLED
VOUT (max) 18.9 22.2
Peak Current (typ) 1.2A (min) 2.2A (min) 1.5A 2.45A 400, 400, 400, 600, 400, 600, 2.1A 2.1A 0.8A
Fixed off-time Fixed off-time Fixed duty cycl Fixed duty cycle kHz/1.6 kHz/1.6 kHz/1.25 1.25 1.25 1.25
Ambient Temp Range (°C) 1253 1253 1253
Comments Programmable oscillator frequency Flat panel display power, high current driver Analog input dimming Dual display control Dual display control, analog dimming dimming control LEDs plus OLED subdisplay Flash driver, timeout protection, active enable Flash driver, timeout protection, active high enable 5-LED string
Packaging SOIC-8 LLP-14 SOIC-8 LLP-14 SOT23-5 SOT23-5 SOT23-8 SOT23-5 SOT23-5 SOT23-5 MSOP-8 micro SMD-8 micro SMD-8 micro SMD-10, LLP-16 micro SMD-10, LLP-16 SOT23-6 LLP-14 LLP-14 LLP-14 LLP-8
Temperature
Current Sources Driving White LEDs
Product LM3590 LM3595 12.6 Number Individual Outputs ILED (mA) (kHz) Brightness Control Analog Brightness Control Ambient Temp Range Packaging SOT23-5 LLP-10
LM3502 Boost Converter Driving White LEDs String
MAIN: LEDs
VSUPPLY Cntrl
OUT1
VOUT2
LM3502-44 AGND PGND
COUT
Logic Voltage Signal Inputs
SUB: LEDs
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ASSP LMUs
Lighting Management Solutions (LMUs)
Product LP3933 LP3936 Description Boost switching regulator driver main white), display white) fun-light RGB) LEDs, interface Boost switching regulator&driver main (4white), display white) fun-light RGB) LEDs, ambient light sensor with averaging, I2C/Microwire/SPI interface Boost switching regulator driver LEDs white LEDs white LEDs), interface programmable color, turn on/off slopes blinking patterns controller RGB/white/blue LEDs controller RGB/white/blue LEDs Boost regulator, sets fully controllable with single differential audio input synchronization Boost switching regulator driver main (4white), display white), flash sets LEDs with audio sync temperature light sensor Boost switching regulator driver main white), display white) keypad sets white LEDs); compatible interface Range Drive Current Temp Range (°C) Packaging CSP-32 CSP-32 mA/white LED, mA/RGB mA/white LED, mA/RGB mA/LED
LP3931
LLP-24
LP3943 LP3944 LP3950 LP3954
mA/LED mA/LED
LLP-24 LLP-24 Laminate TCSP-32 micro SMD-36
mA/white LED, mA/Flash
LP3958 LM4970 LP5526 LP5527
micro SMD-25 LLP-14 micro SMD-25 micro SMD-30
driver with mono stereo audio input lighting effects sync audio; brightness control over Boost switching regulator+driver flash driver; compatible interface GPIOs
Boost switching regulator driver camera flash LEDs with programmability, connectivity test audio synchronization
ASSP High Brightness Drivers
High Brightness Drivers
Product LM2734 LM2737
LM3402 LM3402HV LM3478
Type Buck Buck Buck Buck SEPIC,boost, flyback Buck Buck Boost Buck Buck Buck, boost, flyback
2.97
VOUT (max) Variable, ISNS Variable, ISNS -pin Adjustable Adjustable Adjustable Adjustable
IOUT (max) External 0.5A 0.5A External External External 0.4A 0.5A External
LM3485 LM3489 LM5000 LM5007 LM5010/LM5010A LM5020
LM3402/02HV 0.5A Constant Current Buck Regulator Driving High Power
Features
Input (LM3402) (LM3402HV) 0.5A drive capability feedback voltage dimming power shutdown Available MSOP-8 packaging
IBLUE= IWHITE=
Automatic Rearview Mirror Light Driver
VIN=
LM3402
ISNS
LMC555 Dimmer
Night/Day
RSNS
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Industrial Telecom Solutions
Telecom Hot-Swap Controllers
Current Limit Methods Power Good Output Active high Active high Active Active Active high, Open drain LM5069-2 Auto-retry Active high, Open drain Note: products support soft-start, current limiting, UVP, OVP. Product LM5068-1 LM5068-2 LM5068-3 LM5068-4 LM5069-1 Range Fault Latch/Retry Latch-off Auto-retry Latch-off Auto-retry Latch-off In-Rush Current Active/SS Active/SS Active/SS Active/SS Active/SS Active/SS Active Limiting Fast Comparator Temp Range (°C) Packaging MSOP-8 MSOP-8 MSOP-8 MSOP-8 MSOP-10 MSOP-10
Regulators Controllers
Product Integrated Switching Regulators LM5000 LM5005 LM5007 LM5008 LM5010A Switching Regulator Controllers LM5020 LM5021 LM5025/A/B LM5026 LM5030 LM5032 LM5033 LM5034 LM5041/A LM5115 MOSFET Drivers LM5100/1/2/4 LM5105/07/09 LM5110/11/12 Load Share Controller LM5080 Power-over-Ethernet Controller LM5070/71/72 Description Wide 3.1V input, switch boost flyback Ultra-wide input voltage range 2.5A buck regulator input, step-down with fast transient response 100V input, step-down with fast transient response input, step-down with fast transient response Single-ended 100V current-mode controller AC-DC current mode controller Active-clamp voltage-mode 100V controller with feed-forward gate driver Active-clamp current-mode 100V controller with gate driver 100V push-pull current-mode controller with synchronization High-voltage dual interleaved current mode controller 100V push-pull voltage-mode controller with synchronization High-voltage dual interleaved current mode controller with active clamp 100V input cascaded controller Secondary side post regulator controller Dual drivers 100V synchronous buck bridge topologies 100V half-bridge power MOSFET drivers Single dual high-current drivers Modular current-sharing controller Combo interface controller
LM5020, LM5025, LM5030, LM5041
Fuse -48V Input (-35V -75V) +48V 0.5A 4.5V +12V +2.5V +1.8V Vp-p +1.2V
LM5100/1/2/4/5, LM5110/11/12
Double Data Rate (DDR) Memory Supply Termination
Memory Supply (VDD/VDDQ) Regulators
Product LM2727 LM2737 LM2745/47 LM27241 LM5115 Range (PVIN) IOUT cont. cont. cont. cont. cont. VOUT (Min) 0.75 30.0 Temp Range (°C) Other Features/Comments Suspend disk shutdown; latch-off Suspend disk shutdown Monotonic start-up, synchronization Pulse-skip mode high light load efficiency SSPR, synchronization Packaging TSSOP-14 TSSOP-14 TSSOP-14 TSSOP-20 TSSOP-14
Note: products support shutdown, lossless current sense, power-good flag.
Memory Termination (VTT) Reference (VREF) Regulators
Product Linear LP2994 LP2995 peak, cont. peak, cont. DDR-II Suspend shutdown SOIC-8 SOIC-8, LLP-16, PSOP-8 SOIC-8, LLP-16, PSOP-8 SOIC-8, PSOP-8 TSSOP-14 Range (PVIN) Sink/Source Standards External Components Split Rails* Shutdown VREF Thermal Protection Temp Range (°C) Other Features/ Comments Packaging
LP2996
peak, cont.
DDR-II
Suspend shutdown Suspend shutdown Suspend shutdown, offset
LP2997 Switching LM2744
peak, cont. cont.
DDR-II
DDR-II
*Independent power analog rails
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Automotive LDOs
Output Current (mA) 350/80 700/100 250/75 VOUT Tolerance 0.75 2/1.5F Reverse Polarity Protection
Product LM2936 LM2936HV LM9036 LM2931/A/C LM2930 LM330 LM9076 LM9070 LM9071 LP2952/A LP2953/A/AM LP2954/A LP2956/A LP2957/A LM2937 LP2960/A LM2940/40C LM2941/41C LM9072 LM9073 LP2956/A
Fixed 3.3, 3.3, 3.3, 3.3, 3.3, 3.3, 3.3, 2.5, 3.3, 3.3, (2x) main tracking (2x)
1.24 1.24 1.24 1.24 1.24 1.24
4.75
VDROPOUT (max)
Transient Protection +60/-50 +60/-50 +60/-50 +60/-50 +40/-12 +60/-50 +60/-50 +60/-50 +60/-50 +60/-50 +60/-45 +60/-45
Max1 (mA)1 1.0F 0.025 0.17 0.17 0.15 0.25 0.25
Single-Output LDOs
Dual-Output/Tracking LDOs
Triple-Output/Tracking LDOs LM2984/84C
500/100/7.5
(3x)
+60/-55
2Those
denotes value full temp range denotes typical value, otherwise values maximum 25°C. Typically quiescent current given minimum load. regulators originally designed used with ceramic output caps still stable using ceramic capacitors COUT connected series with small resistor simulate needed ESR.
Shutdown
Error Flag
Ceramic Caps Stable2
Other Features/Comments Keep-alive pin, good immunity Good immunity Aux. comparator output MSOP package only Aux. comparator, aux. output Aux. comparator Keep-alive Watchdog, keep-alive pin, input transient protection Aux. comparator Watchdog supervisor. Reverse voltage, transient protection
Temp Range Ind, Ind, Ind, Ind, Ind,
Packaging MSOP-8, SOT223-4, TO252-3, SOIC-8, TO92-3, MSOP-8, SOT223-4, TO252-3, SOIC-8, TO92-3, TO252-3, MSOP-8, SOIC-8 micro SMD-6, MSOP-8, TO220-3, TO263-3/5, TO92-3, TO220-3, TO263-3, TO220-3, TO263-5, SOIC-8 TSSOP-20, TO220-7 TO220-5, TO263-5 TSSOP-16, MDIP-14, TSSOP-16, MDIP-16, MSOP-8, TO220-3, TO263-3 TSSOP-16, MDIP-16 TO220-5 SOT223-4, TO220-3, TO263-3, SOIC-16 SOT223-4, TO220-3, TO263-3, LLP-8, CERDIP-16, TSSOP-16, TO220-5, TO263-5, LLP-8, TSSOP-16, CERDIP-16 TO263-9, TO220-11, TSSOP-16, MDIP-16
TO220-11
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Design Tools
Commonly Used Switching Topologies
Buck
ISWITCH IOUT VOUT
Synchronous Buck
ISWITCH ILOAD VOUT ISWITCH
Function: Step-down (VOUT VIN) When use: Typically when VOUT IOUT 0.5A Characteristics: Easy design good efficiency abovementioned typical VIN/VOUT/IOUT conditions Devices use: buck integrated regulators controllers Comments: multi-output isolation through coupling second inductor shown basic circuit
Function: Step-down (VOUT VIN) When use: When high efficiency required with high-output current duty cycles (VIN VOUT and/or IOUT 0.5A) Characteristics: second switch replaces diode basic buck topology, reducing losses conditions mentioned above Devices use: "synchronous rectification" buck integrated regulator controller
Boost
ISWITCH IOUT VOUT
Flyback
ILOAD VOUT
VOUT ISWITCH ILOAD
Function: Step-up (VOUT VIN) When use: Typically used when transformerless, regulated output voltages larger than input voltages output currents beyond required Characteristics: Best low-power conversion 20W) output voltages less than equal input voltage Devices use: boost/flyback regulators controllers Comments: Output current VIN/VOUT switch current
Function: Step-up, step-down, invert buck-boost When use: Typically when multi-output isolation required, when step-up beyond required when max. voltage current switch needs extended order take advantage turns-ratio conversion from transformer Characteristics: Ideal medium-power conversion 100W) Devices use: boost/flyback regulators controllers
SEPIC
ISWITCH
ILOAD VOUT
ISWITCH ILOAD VOUT
SEPIC Single Ended Primary Inductor Converter Function: Buck-boost (VIN max. VOUT min.) When use: Excellent option when buck-boost operation needed transformer desired Characteristics: Lower input ripple than flyback, snubber circuitry required Devices use: boost/flyback regulator controller Comments: Also useful replacing boost circuits when true shutdown required
Function: Inverting (VOUT negative; positive) When use: When regulated, negative, low-ripple voltage needed from positive supply Characteristics: Continuous current input output translates into very low-ripple/very low-noise design Devices use: boost/flyback regulator this easiest with parts that have negative input Comments: isolation when transformer added
Inverting
ISWITCH ILOAD VOUT
Single Inductor Buck Boost
ISWITCH ILOAD VOUT
Function: Inverting (negative output from positive input, -VOUT greater than less than VIN) When use: When inverted, regulated output needed. This topology commonly used output currents from approximately Characteristics: Easy implement, single output Devices use: buck integrated regulator controller (see National's Note AN-1157 implementing with SIMPLE SWITCHER® buck regulator) Comments: Alternatives voltage inversion include topologies (low noise) switched capacitor converters where IOUT less than inductor needed)
Function: Step-up step-down When use: This topology alternative sepic flyback topologies when automatic step-up/step-down functionality needed, transformer second inductor required Characteristics: second switch output diode added, resulting effective overlapped boost topology basic buck topology. desired, synchronous rectification implemented increased efficiency (both diodes replaced FETs). Devices use: integrated buck regulator controller, including SIMPLE SWITCHER buck regulators Comments: sure watch voltage applied gate second which will VIN. high selected specifications, voltage limiting circuitry.
Push-Pull
ILOAD VOUT
Current-Fed Push-Pull (Cascaded)
ILOAD
VOUT
Function: Isolated step-down, step-up buck-boost multiple outputs When use: When isolated, medium-to-high power conversion needed 1000 This topology also used when input voltage range very wide when VIN/VOUT ratio step-down applications requires very small duty cycle (and thus might yield poor regulation) standard buck topology used. Devices use: LM5030 current-mode push-pull controller Comments: peak current voltage stress switches given max., 1.56 POUT/VIN min.
Function: Isolated step-down, step-up, buck-boost topologies. tightly regulated multiple outputs. When use: When isolated medium- high-power conversion needed, reduced losses, high efficiency, output inductor also desired. Characteristics: current-fed cascaded topology consists buck regulation stage followed push-pull isolation stage. Because buck stage feeds continuous current push-pull stage, output inductor required. Devices use: LM5041 current-mode cascaded controller Comments: increase conversion efficiency, synchronous rectification recommended, both current-fed buck stage push-pull output stage (self-driven synchronous rectification)
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Packaging Solutions
More Information
National Semiconductor provides comprehensive support services. Product information, including sales literature technical assistance, available through National's Customer Support Centers. samples, evaluation boards, datasheets, online design tools, visit: power.national.com
Packaging
Americas Email: Phone: Europe Fax: Email: Phone: new.feedback@nsc.com 1-800-272-9959
180-530 europe.support@nsc.com Deutsch 9508 6208 English 2171
Power supply designs that push limits size, performance, cost, need careful thermal considerations keep device junction temperature within limits specified device datasheet. difference between ambient device junction temperature determined only thermal resistance package power consumed device, also system thermal design including layout heat distribution mechanisms such heat sinks airflow. Shown below sample National's portfolio packaging options including chip scale thermally enhanced packages. package thermal resistance maximum tolerable junction temperature refer device data sheet. Visit www.national.com/packaging additional packaging information.
Asia Pacific Email: ap.support@nsc.com Japan Email:
jpn.feedback@nsc.com Leadless Leadframe Package (LLP®)
National Semiconductor 2900 Semiconductor Drive Santa Clara, 95051 9959 Mailing address: 58090 Santa Clara, 95052 Visit website www.national.com more information, send email new.feedback@nsc.com
National's LLP® package provides excellent power dissipation capability very small footprint.
Laminate CSP-32
micro
(Small large bump)
MSOP (Mini 8-lead)
PSOP-8
SC-70
(Small outline molded/ceramic)
SOT-223
(Power surface mount)
SOT-23
TO-220
TO-263
(Power surface mount)
TO-252
(DPAK)
TO-92
TSSOP
eTSSOP
MDIP
(Molded dual-in-line package)
National Semiconductor Corporation, September 2006. National Semiconductor, LLP, WEBENCH, Analog University, TRI-STATE, SIMPLE SWITCHER registered trademarks National Semiconductor. PowerWise trademark National Semiconductor Corporation. rights reserved.
570649-006

General Purpose Products VINmax >25V Controllers Integrated Switch Buc

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