LOW-DROPOUT VOLTAGE REGULATOR LM2954 monolithic integrated voltag

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LOW-DROPOUT VOLTAGE REGULATOR LM2954 monolithic integrated voltag

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UNISONIC TECHNOLOGIES CO., LM2954
LOW-DROPOUT VOLTAGE REGULATOR
LM2954 monolithic integrated voltage regulator with dropout voltage, quiescent current. includes many features that suitable different applications with TO-92, DIP-8, SOP-8 SOT-223 packages.
SOT-223 TO-92
LINEAR INTEGRATED CIRCUIT
FEATURES
*High accuracy fixed output. *Output voltage programmable Logic controlled shutdown error flag available package. *Extremely quiescent current dropout voltage. *Extremely tight load line regulation. *Current thermal limiting. *Very temperature coefficient.
SOP-
DIP-8
*Pb-free plating product number: LM2954L
ORDERING INFORMATION
Order Number Normal Lead Free Plating LM2954-xx-AA3-R LM2954L-xx-AA3-R LM2954-xx-D08-T LM2954L-xx-D08-T LM2954-xx-S08-R LM2954L-xx-S08-R LM2954-xx-S08-T LM2954L-xx-S08-T LM2954-xx-T92-B LM2954L-xx-T92-B LM2954-xx-T92-K LM2954L-xx-T92-K Package SOT-223 DIP-8 SOP-8 SOP-8 TO-92 TO-92 assignment refer Configurations Packing Tape Reel Tube Tape Reel Tube Tape Bulk
Note: assignment: I:Vin O:Vout G:Ground 2.xx: Output Voltage
LM2954L-xx-AA3-R (1)Packing Type (2)Package Type (3)Output Voltage Code (4)Lead Plating Tape Box, Bulk, Tape Reel, Tube AA3: SOT-223, D08: DIP-08, S08: SOP-8, TO-92 3.3V:33, 5.0V:50, ADJ:AD Lead Free Plating Blank: Pb/Sn
www.unisonic.com.tw Copyright 2005 Unisonic Technologies Co.,
QW-R102-002,F
LM2954
MARKING INFORMATION
PACKAGE VOLTAGE CODE
LINEAR INTEGRATED CIRCUIT
MARKING
LM2954
SOT-223 33:3.3V 50:5.0V
VOLTAGE CODE
LEAD PLATING DATE CODE
TO-92
3.3:3.3V 5.0:5.0V
LM2954
VOLTAGE CODE
LEAD PLATING DATA CODE
3.3:3.3V 5.0:5.0V
LEAD PLATING
DATA CODE
2954
VOLTAGE CODE
SOP-8/DIP-8
DATA CODE
2954
LEAD PLATING
UNISONIC TECHNOLOGIES CO.,
www.unisonic.com.tw
QW-R102-002,F
LM2954
CONFIGURATIONS
LINEAR INTEGRATED CIRCUIT
LM2954
OUTPUT
INPUT
TO-92 Plastic Package Bottom View
LM2954
INPUT
OUTPUT
SOT-223 Package
OUTPUT
INPUT
SENSE
LM2954
FEEDBACK
SHUTDOWN
ERROR
SOP-8 DIP-8 Package
UNISONIC TECHNOLOGIES CO.,
www.unisonic.com.tw
QW-R102-002,F
LM2954
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
UNREGULATED
FEEDBACK
INPUT
OUTPUT
150mA MAX.
SENSE 182k FROM CMOS SHUT DOWN 60mV ERROR AMPLIFIER ERROR 1.23 ERROR DETECTION COMPARATOR CMOS 330K
UNISONIC TECHNOLOGIES CO.,
www.unisonic.com.tw
QW-R102-002,F
LM2954
ABSOLUTE MAXIMUM RATINGS
LINEAR INTEGRATED CIRCUIT
PARAMETER SYMBOL RATINGS UNIT Supply Voltage -0.3 Feedback Voltage -1.5 Shutdown Voltage VSHDN -0.3 Comparator Output Voltage VOUT -0.3 Junction Temperature +125 Operating Temperature TOPR Storage temperature TSTG +150 Note: 1.Absolute maximum ratings those values beyond which device which device could permanently damaged. Absolute maximum ratings stress ratings only functional device operation implied. 2.The device guaranteed meet performance specification within 0~+70 operating temperature range assured design from -20~+85, characteristic correlation with static process control.
ELECTRICAL CHARACTERISTICS(TJ=25°C, VIN=6V, IL=100µA, CL=1µF, unless otherwise specified)
PARAMETER LM2954-3.3 Output Voltage LM2954-5.0 Output Voltage Temperature Coefficient Line Regulation Load Regulation Dropout Voltage Ground Current Dropout Ground Current Current Limit Output Noise (10Hz 100KHz) LM2954-ADJ 8-PIN VERSION ONLY Reference Voltage Reference Voltage Feedback Bias Current Reference Voltage Temperature Coefficient Feedback Bias Current Temperature Coefficient SYMBOL VOUT TEST CONDITIONS TJ=25°C MIN. 3.23 4.90 TYP. 0.075 MAX. UNIT 3.37 5.10 ppm/°C 0.23 1.25 1.27 ppm/°C nA/°C
TCVO VOUT 6VVIN18V VOUT 100µAIL300 IL=100mA IL=200mA (note IL=100µA IGND IL=200mA VIN=4.5V,IL=100µA ILIMIT VOUT=0 CL=1µF CL=200µF CL=3.3µF VREF VREF IB(FB) TCVREF TCIO VREFVOUT(VIN-1V), 2.3VVIN18V, 100µAIL100mA, TJTJMAX
1.22 1.19
1.235
UNISONIC TECHNOLOGIES CO.,
www.unisonic.com.tw
QW-R102-002,F
LM2954
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER ERROR COMPARATOR Output Leakage Current Output Voltage Upper Threshold Voltage Lower Threshold Voltage Hysteresis SHUTDOWN INPUT Input Logic Voltage SYMBOL ILEAK VTHD(UP) VTHD(LOW) VHYS
LINEAR INTEGRATED CIRCUIT
TEST CONDITIONS VOH=18V VIN=4.5V, IOL=400µA (Note (Note (Note
MIN.
TYP.
MAX.
UNIT %VOUT %VOUT
(Regulator 0.70 High (Regulator OFF) VSHDN=2.4V Shutdown Input Current II(SHDN) VSHDN=18V VSHDN2V,VIN18V, VOUT=0, Regulator Output Current Shutdown IO(SHDN) Feedback tied Tap. Note Additional conditions 8-pin versions feedback tied Output tied Output Sense (VOUT=5V) VSHDN0.8V. Note Dropout voltage defined input output differential which output voltage drops 100mV nominal value measured differential. Note Comparator thresholds expressed terms percentage value voltage output. VI(LOG)
below
UNISONIC TECHNOLOGIES CO.,
www.unisonic.com.tw
QW-R102-002,F
LM2954
APPLICATION CIRCUIT (10A Dropout Regulator) Pins
CURRENT LIMIT SECTION +VIN=VOUT+0.5V
LINEAR INTEGRATED CIRCUIT
2N3906
0.05
D65H0
4.7M
+VIN ERROR LM2954 VOUT
+VOUT
100F
0.033F
VOUT=1.23V*(1+R1/R2) output internal resistors.Wire wire +VOUT
Pins
LM2954-3.3 LM2954-5.0
VOUT
assumes responsibility equipment failures that result from using products values that exceed, even momentarily, rated values (such maximum ratings, operating condition ranges, other parameters) listed products specifications products described contained herein. products designed life support appliances, devices systems where malfunction these products reasonably expected result personal injury. Reproduction whole part prohibited without prior written consent copyright owner. information presented this document does form part quotation contract, believed accurate reliable changed without notice.
UNISONIC TECHNOLOGIES CO.,
www.unisonic.com.tw
QW-R102-002,F

LOW-DROPOUT VOLTAGE REGULATOR LM2954 monolithic integrated voltag

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