UM1550 Datasheet, PDF (5/13 Pages) Union Semiconductor, Inc. – 8V Input, Low Quiescent Current Linear Regulator

UM1550/1560
Electrical Characteristics
V_IN= V_OUT+1V, C_IN=C_OUT=1µF, T_A=25°C.
Symbol
Parameter
Test Conditions
Min Typ Max Unit
V_IN
Input Voltage
Range
1.8
8
V
V_OUT
Output Voltage
Range
1.2
5.0
V
I_Q
Operating
Quiescent Current
V_IN=8V, I_OUT=0mA
2.5 3.5
μA
I___________
SHDN
Shut Down
Quiescent
Current
___________
SHDN Input
Current
____________
V_IN=8V, SHDN= GND
____________
SHDN=V_IN or GND
1
μA
1
μA
I_OUT
Output Current
250
mA
Output Voltage
Accuracy
1mA≤I_OUT≤250mA
-2.5
+2.5
%
ΔV_DO Dropout Voltage
I_OUT=200mA
250 330 mV
I_LIMIT
Output Current
Limit
R_L=1Ω
280 360 500 mA
t
Startup Time
Response
V_OUT=3.3V, R_L=68Ω,
C_OUT=1μF
80
μs
___________
V_IL
SHDN Input Low
Voltage
V_IN=1.8V to 8V
0.4
V
___________
V_IH
SHDN Input High
Voltage
V_IN=1.8V to 8V
1.2
V
Output Voltage TC
-40°C to +125°C
60
ppm/°C
Line Regulation
Load Regulation
Output Voltage
Noise
V_OUT+0.3V≤V_IN≤8.0V or
V_IN>1.8V
I_OUT=10mA
V_IN=V_OUT+1V or
V_IN>1.8V
1mA≤I_OUT≤250mA
V_OUT=3.0V,
f=10Hz to 100kHz,
C_IN=1μF, I_OUT=100mA
0.3 %/V
0.6
%
115
μV_RMS
PSRR
Power Supply
Ripple Rejection
V_IN=V_OUT+1V
I_OUT=100mA
f=100Hz
f=1kHz
56
42
dB
ESD Rating
Human Body Mode
2
kV
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http://www.union-ic.com Rev.01 Nov.2015
5/13