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voltage regulator sot 223 - voltage regulator sot 223
MIC5209 - MIC5209
AS3819
Low-Noise Voltage Regulator
(ADVANCED INFORMATION) FEATURES
Ultra-Low Noise Output Initial Accuracy 500mA Very Quiescent Current Dropout Voltage (300mV 500mA) Current Thermal Limiting Reverse-Battery Protection Several Output Voltages, 2.5, 3.3, 5.0V Adjustable Zero Off-Mode Current Packages offered SO-8, TO-263, SOT-223, SOT-23 TO-220 Compatible MIC5209 (Fixed Option Only)
APPLICATIONS
Battery Powered Systems Cordless Telephones Radio Control Systems Portable/Palm Top/Notebook Computers Portable Consumer Equipment Portable Instrumentation Code Scanners SMPS Post-Regulator
PRODUCT DESCRIPTION
AS3819 powered positive voltage regulator with ultra noise output very voltage dropout. addition, this device offers very quiescent current approximately 800uA 100mA output. AS3819 initial tolerance less than with logic compatible ON/OFF switching input. unique feature AS3819 includes reference bypass best results noise. This device excellent choice battery-powered applications such cordless telephones, radio control systems, portable computers. When disable power consumption drop nearly zero. This device very output temperature coefficient, making power voltage reference. features include protection against reversed battery, fold-back current limiting, automotive load dump protection. AS3819 available several fixed voltages 2.5V, 3.3V, 5.0V adjustable output. This device offered SO-8, TO-263, SOT-223, 5-pin SOT-23 3-pin TO-220. These packages offer features adjustable output.
TO-263 (T5) 5-PIN AS3819T5-X
ORDERING INFORMATION
SO-8 (S1) AS3819S1-X TO-263 3-PIN AS3819T-X SOT-223 (M3) AS3819M3-X SOT-23-5(M5) AS3819M5-X TO-220 AS3819U-X OPER JUNCTION RANGE
-40°C +125°C
TO-263-3 Package
Package Marking Information SOT-23. Output Voltage 2.5V, 3.3V ect; Blank Adj. other output voltages consult factory.
8-Pin Surface Mount (S1)
TO-263-5 Package
AS3819
AS3819
VOUT ADJ/BYP
AS3819
MARKING INFORMATION
(SOT-23 Only)
VOUT
View
Voltage 2.5V 3.3V 5.0V
Marking A0XX A8XX A1XX A9XX
View
VOUT
Front View
SOT-223
SOT-23-5
TO-220
AS3819
VOUT
AS3819
AS3819
Front View
Production Reference Code.
ADJ/BYP
VOUT
Front View
View
Rev. 10/2/00
AS3819
ABSOLUTE MAXIMUM RATINGS
Power Dissipation. Internally Limited Lead Temp. (Soldering, Seconds) 260°C Operating Junction Temperature Range -40°C +125°C Input Supply Voltage.-20V +20V Enable Input Voltage.-20V +20V
RECOMMENDED OPERATING CONDITIONS
Input Voltage. +2.5V to+16V Operating Junction Temperature Range -40°C +125°C Enable Input Voltage.
ELECTRICAL CHARACTERISTICS
25°C, VOUT 100µA, 1µF, VENABLE 2.4V. Unless otherwise specified boldface applies over junction temperature range Parameter Test Conditions Units
Output Voltage Tolerance Output Voltage Temperature Coef. (V/T) Line Regulation (V/V) Load Regulation (V/V) Dropout Voltage (VIN- VOUT 0.1mA 500mA Quiescent Current (IGND) Ground Current (IGND) VENABLE 0.6V VENABLE 0.25V Ripple Rejection (PSRR) Current Limit (ILIMIT) Output Noise (eNO) Input Voltage Level Logic (VIL) Input Voltage Level Logic High (VIH) ENABLE Input Current Thermal Resistance 0.04 0.05 0.05 0.10 13.0 25.0 30.0 ppm/°C
µVRMS
VOUT 50mA, 1.0µF (10Hz 100KHz) 0.6V 2.0V TO-220 Package SOT-223 SOT-23-5 SO-8
0.01 Junction Junction Ambient Junction Junction Ambient Junction Junction Ambient Junction Junction Ambient Junction Junction Ambient
°C/W
Rev. 10/2/00
AS3819
TYPICAL APPLICATION
VOUT
AS3819
(Optn.)
ENABLE tied directly
Rev. 10/2/00
AS3819
Ground Current Load Current
(mA) (mA) 3.3V Device 4.3V 1.0uF (uA) 3.3V Device 100uA 1.0uF
Ground Current Input Voltage
Ground Current Load Current Dropout)
14.0 12.0 10.0 (mA) (mA) 3.3V Device 4.3V 1.0uF Vout
Output Voltage Input Voltage
3.350 3.345 3.340 3.335 3.330 3.325 3.320 3.315 3.310 3.305 3.300 3.295 3.290 3.3V Device 100uA 1.0uF
Dropout Voltage Load Current
Dropout (mV) (mA) 3.3V Device 3.2V 1.0uF Vout 3.316 3.314 3.312 3.310 3.308 3.306 3.304 3.302 3.300
Output Voltage Load Current
3.3V Device 4.3V 1.0uF
(mA)
Rev. 10/2/00
AS3819
Ground Current Temperature
(uA) Temperature (Degree 3.3V Device 4.3V 1.0uF 100uA
(uA) Temperature (Degree 3.3V Device 1.0uF 50mA
Ground Current Temperature
Ground Current Temperature
14.0 13.5 (mA) (mA) 3.3V Device 4.3V 1.0uF 500mA 13.0 12.5 12.0 11.5 11.0 Temperature (Degree 10.5
Ground Current Dropout Temperature
3.3V Device 4.3V 1.0uF 500mA
Temperature (Degree
Enable Voltage Threshold) Input Voltage
1.30 1.25 VEN, Threshold 1.20 1.15 1.10 1.05 1.00 3.400 3.380 3.3V Device =1.0uF 100uA Vout 3.360 3.340 3.320 3.300 3.280 3.260 3.240 3.220 3.200
Output Voltage Temperature
3.3V Device 4.3V 1.0uF 500uA
Temperature (Degree
Rev. 10/2/00
AS3819
Rev. 10/2/00
AS3819
Application Hints
AS3819 requires output capacitor device stability. value required varies greatly depending upon application circuit. high frequency characteristics electrolytic capacitors depend greatly type also manufacturer. Sometimes bench testing only means determine proper capacitor type value. high quality 2.2µF aluminum electrolytic capacitor covers general application circuits; this stability obtained with tantalum electrolytic value 1µF. general, linear regulator stability decreases with higher output currents. most applications AS3815 operating milliamps. these applications output capacitance further reduced. example, when regulator running 10mA output current output capacitance value half compared same regulator that running 150mA. With AS3819 adjustable regulator, minimum value output capacitance function output voltage. value decreases with higher output voltages, since closed loop gain increased.
Typical Applications Circuits AS3819 provides access internal reference. 10µF capacitor will provide significant reduction output noise. This left unconnected output noise major concern. AS3819 start-up speed inversely proportional size capacitor. Applications requiring slow ramp-up output voltage should consider larger values CBYP. rapid turn-ON necessary, omit bypass capacitor. Figure shows AS3819 standard application circuit. (enable) pulled high (>2.0V) enable regulator. disable regulator, 0.6V.
Hi-ON Lo-OFF AS3819 SOT-23 (Optn)
View
Fig.
AS3819 figure shows adjustable output voltage configuration. resistors output voltage. formula output voltage VOUT 1.235V Resistor values critical high input impedance, best results resistors less. capacitor ground will provide improved noise performance.
Hi-ON Lo-OFF AS3819 SOT-23 VOUT
(Optn)
View
Fig.
Rev. 10/2/00
AS3819
PACKAGE DRAWING SOIC-8
(0.158) (0.150)
(0.205) (0.181)
(0.244) (0.228)
1.27 (0.50)
1.75 (0.069) 1.35 (0.053) 0.78 (0.031) 0.61 (0.024) (0.197) (0.188) 0.37 (0.015) 0.77 (0.030) 0.64 (0.025) PLCS)
3°-6° 0.56 (0.022) 0.49 (0.019) 0.45 (0.018) 0.35 (0.014) 0.20 (0.008) 0.10 (0.004) 0.22 (0.009) 0.19 (0.007) PLCS)
Rev. 10/2/00
AS3819
PACKAGE DRAWING TO-263-3L
0.405 0.005 (10.287 0.127)
0.055 (1.397)
0.176± 0.005 (4.470 0.127) 0.050 0.002 (1.270 0.051)
0.356 0.005 (9.042 0.127) 0.600 0.025 (15.24 0.635)
0.103 (2.616)
0.050 (1.270) 0.032 0.001 (0.813 0.025)
0.015 (0.381
0.003 0.074)
0.100 (2.540
0.010 0.254)
Rev. 10/2/00
AS3819
PACKAGE DRAWING TO-263-5L
0.055 (1.397) 0.405 0.005 (10.287 0.127)
0.176 0.005 (4.470 0.127) 0.050 0.002 (1.270 0.051)
0.356 0.005 (9.042 0.127)
0.600 0.025 (15.24 0.635)
0.100 0.010 (2.540 0.254)
0.067 0.005 (1.702 0.127)
0.032 0.003 (0.813 0.076)
0.015 0.003 (0.381 0.074)
Rev. 10/2/00
AS3819
PACKAGE DRAWING SOT-223-3L (M3)
0.124 0.116
0.146 0.295 0.130 0.264
0.0905 0.181
0.041 0.033
0.067 0.028 0.0040 0.0008 0.264 0.248
16°C 10°C
10°C
0.014 0.010
0.033 0.025
16°C 10°C
Rev. 10/2/00
AS3819
PACKAGE DRAWING SOT-23-5L (M5)
PLACES)
SYMBOL
MILLIMETERS
INCHES
MIN. 0.90 0.30 0.10 2.70 1.40 1.70 2.50
1.30 0.10
MIN. .035 .012 .004 .106 .055 .066 .098
MAX. .051 .004 .019 .0137 .122 .071 .082 .118
NOTE: REFER APPLICABLE CONTROLLING DIMENTION MILLIMETER PACKAGE SURFACE FINISHING SMOOTH FINISH.
0.80 0.50 0.35 3.10 1.80 2.10 3.00
.0315
0.95 BSC.
.037 BSC.
.0078
Rev. 10/2/00
AS3819
PACKAGE DRAWING TO-220-3L
0.151D 0.002 (3.835 0.051) 0.408 0.013 (10.36 0.33) 0.110 0.010 (2.794 0.254)
0.180 0.005 (4.572 0.127) 0.050 0.002 (1.270 0.051)
0.250 0.010 (6.350 0.254) Tapered Sides 0.340 0.010 (8.636 0.254)
SEATING PLANE
0.150 (3.81 MIN) Typ. 0.540 0.015 (13.720 0.381) 0.410 (10.41)
1.020 0.015 (25.910 0.381)
0.050 (1.27 TYP) 0.200 0.010 (5.080 0.254)
0.100 0.010 (2.540 0.254) 0.032 0.005 (0.813 0.127) 0.015 0.010/-0.002 (0.381± 0.254/-0.051)
0.015 0.010/-0.015 (2.667± 0.254/-0.381)
Rev. 10/2/00
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