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LDO57 Datasheet(PDF) 3 Page - STMicroelectronics

Part No. LDO57
Description  IP Library: High Output Current, Low power, 400mA Low Dropout Voltage Regulator
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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LDO57 Datasheet(HTML) 3 Page - STMicroelectronics

   
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LDO_57
3/4
1
10
100
1000
10000
100000
1000000
-70
-60
-50
-40
-30
-20
FREQUENCY (Hz)
150m V
170m V
200m V
2V
ELECTRICAL CHARACTERISTICS : (Stand-by mode)
3V < VIN < 5.5V, -30°C < TA < +85°C, VREF = 2.8V, COUT = 4.7µF ±20%, 20mΩ < ESR < 0.6Ω,
ILOAD =500µA.
Typical case : VIN = 4V, Ambient temperature, ILOAD = 500µA.
TYPCIAL CHARACTERISTICS
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Output current in stand-by mode
IOUTSTDBY
500
µA
Quiescent Current in stand-by mode
ISTDBY
ILOAD = 500µA20
30
Power Supply Rejection Ratio
in stand-by mode
PSRRSTY
f = 10KHz
35
45
dB
Line Regulation in stand-by mode
LirSTDBY
ILOAD = 500µA,
VIN = 2.9V to 5.5V
26
mV
Load Regulation
LdrSTDBY
ILOAD = 100µA - 500µA
50
55
mV
Figure 7 : PSRR vs Frequency
for Various Voltage Drop


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