LDO518 datasheet(2/4 Pages) 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

Output Voltage

VOUT

1.8

Output Voltage Accuracy

Output current

IOUT

100

Dropout Voltage

∆V

OUT = 50mV,

ILOAD = 100mA

(Note 2)

170

Quiescent current

ILOAD = 100µA

µA

ILOAD = 1mA

ILOAD = 10mA

ILOAD = 50mA

ILOAD=100mA

Power down mode quiescent

current

IQPDM

Power down active

100

Power Supply Rejection Ratio

PSRR

∆V

DO = 170mV ;

f < 1KHz

f < 10KHz

∆V

DO = 500mV;

f < 100Hz

f < 1KHz

f < 10KHz

Line Regulation

LIR

ILOAD = 100mA,

VIN = 2V to 5V

0.5

Load Regulation

LDR

ILOAD = 100µA - 100mA

Line Transient

LIRT

∆V

IN = 300mV

tRISE = tFALL = 10µs

610

Load Transient

LDTR

ILOAD = 100µA - 100mA

in 10µs

750

Output Noise Voltage

100Hz

140

1KHz

10KHz

enRMS

BW : 100Hz to 100KHz

µVRMS

Settling time

ILOAD = 100mA

µs

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