LDO58 datasheet(2/4 Pages) STMICROELECTRONICS

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LDO_58

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ELECTRICAL CHARACTERISTICS

3V < VIN < 5.5V, -30°C < TA < +85°C, VREF = 2.8V, COUT = 1µF ±20%, 20mΩ < ESR < 0.6Ω,

ILOAD = 100mA.

Typical case : VIN = 4V, T = 25°C, COUT = 1µF.

Notes: 1. Above characteristics are given for 2.9V minimum input operating range voltage, but regulator

is operational with 2.7V 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

5,5

Output Voltage

VOUT

2,8

Output Voltage Accuracy

Output current

IOUT

100

Dropout Voltage

∆V

OUT = 50mV,

ILOAD = 100mA

(Note 2)

170

Quiescent current

ILOAD = 100µA50

µA

ILOAD = 100mA

110

250

Quiescent Current in stand-by

mode

ISTDBY

ILOAD = 100µA20

Power down mode quiescent

current

IQPDM

Power down active

100

Power Supply Rejection Ratio

PSRR

f = 10KHz

f = 100KHz

Line Regulation

Lir

ILOAD = 100mA,

VIN = 3V to 5.5V

0,5

Load Regulation

Ldr

ILOAD = 100µA - 100mA

Line Transient

Lirt

∆V

IN = 300mV

tRISE = tFALL=10µs

0,5

1,5

Load Transient

Ldtr

ILOAD = 100µA - 100mA in 10µs3

Output Noise Voltage

100Hz

1KHz - 10KHz

enRMS

BW : 10Hz to 100KHz

µV

RMS

Output decoupling Capacitor

COUT

µF

Settling time

From power down to active

mode

µs

Short Circuit Current Limit

ISHORT

200

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