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| LP2951A Datasheet, PDF (2/5 Pages) Semtech Corporation – 150mA ADJUSTABLE VOLTAGE REGULATOR | |||
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150mA ADJUSTABLE
VOLTAGE REGULATOR
LP2951A
March 17, 1998
ELECTRICAL CHARACTERISTICS
Unless specified, limits are over operating temperature range (TJ = TA), VIN = VOUT(NOM) + 1V, IL = 100µA, CL = 1µF
Parameter
Output Voltage
Temp Coefficient(1)
Line Regulation
Load Regulation
Dropout Voltage
Ground Current
Dropout Ground Current
Current Limit
Reference Voltage
Feedback Bias Current
Error Comparator
Output High Leakage
Current
Output Low Voltage
Threshold Voltage
Hysteresis
Shutdown Input
Input Logic Voltage
Input Current
Regulator Shutdown
Output Current
Symbol
VOUT
TC
REG(LINE)
REG(LOAD)
VD
IGND
IGND(D)
ICL
VREF
IFB
Conditions
TJ=25°C, IL = 100µA
0°C ⤠TJ â¤=70°C
6V ⤠VIN=â¤=30V
100µA ⤠IL=â¤=150mA
IL===100µA
IL===150mA
IL===100µA
IL===150mA
VIN = 4.5V, IL===100µA
VOUT = 0
VREF ⤠VOUT ⤠(VIN - 1V), TJ ==25°C,
100µA ⤠IL=â¤=100mA
Min
4.975
1.22
Typ Max
5.000 5.025
20 120
0.1 0.5
0.1 0.4
80 150
380 600
120 160
8
14
110 250
200 250
1.235 1.25
20
60
VOH = 30V
VIN = 4.5V, IOL = 400µA
Upper
Lower
2
150 400
25
60
75 140
15
VSD
Low
0.6
High
2.0
ISD
IO(SD)
VSHUTDOWN = 2.4V
VSHUTDOWN = 30V
VSHUTDOWN ⥠2V, VIN ⤠30V,
VOUT = 0, Feedback pin to Tap 5V
100
750
20
Units
V
ppm/°C
%
%
mV
µA
mA
µA
mA
V
nA
µA
mV
mV
mV
V
V
µA
µA
NOTES:
(1) Temperature coefficient is defined as the worst case voltage change divided by total temperature range.
© 1998 SEMTECH CORP.
2
652 MITCHELL ROAD NEWBURY PARK CA 91320
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