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LDO518 Datasheet(PDF) 2 Page - STMicroelectronics

Part No. LDO518
Description  IP Library: Low Noise, High PSRR 100mA Low Dropout Voltage Regulator
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LDO518 Datasheet(HTML) 2 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS
2V < VIN < 5V, -55°C < TA < +125°C, COUT = 2.2µF ±20%, 20 mΩ < ESR < 0.6Ω, ILOAD = 100mA.
Typical case : VIN = 4V, T = 25°C, COUT = 2.2µF.
Notes: 1. Above characteristics are given for 3V minimum input operating range voltage, but regulator is
operational with 2.5V minimum input voltage.
2. All parameters are guaranteed with 170mV min Dropout voltage.
Parameter
Symbol
Test Condition
Min.
Typ.
Max.
Unit
Input Voltage Range (Note 1)
VIN
25
V
Output Voltage
VOUT
1.8
V
Output Voltage Accuracy
3
%
Output current
IOUT
100
mA
Dropout Voltage
∆V
DO
∆V
OUT = 50mV,
ILOAD = 100mA
50
mV
(Note 2)
170
Quiescent current
IQ
ILOAD = 100µA
25
µA
ILOAD = 1mA
25
ILOAD = 10mA
30
ILOAD = 50mA
35
ILOAD=100mA
45
50
Power down mode quiescent
current
IQPDM
Power down active
100
nA
Power Supply Rejection Ratio
PSRR
∆V
DO = 170mV ;
f < 1KHz
45
50
dB
f < 10KHz
35
40
∆V
DO = 500mV;
f < 100Hz
60
65
f < 1KHz
55
60
f < 10KHz
40
45
Line Regulation
LIR
ILOAD = 100mA,
VIN = 2V to 5V
0.5
1
mV
Load Regulation
LDR
ILOAD = 100µA - 100mA
15
20
mV
Line Transient
LIRT
∆V
IN = 300mV
tRISE = tFALL = 10µs
610
mV
Load Transient
LDTR
ILOAD = 100µA - 100mA
in 10µs
750
mV
Output Noise Voltage
en
100Hz
140
1KHz
75
10KHz
70
enRMS
BW : 100Hz to 100KHz
40
µVRMS
Settling time
ILOAD = 100mA
35
µs
nV
Hz
------------


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