LDO518 datasheet(2/4 Pages) STMICROELECTRONICS | IP Library: Low Noise, High PSRR 100mA Low Dropout Voltage Regulator

Part No.	LDO518

Description	IP Library: Low Noise, High PSRR 100mA Low Dropout Voltage Regulator

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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LDO_518

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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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