AP3428/A

Document number: DS37417 Rev. 5 - 2

5 of 14

www.diodes.com

May 2021

© Diodes Incorporated

AP3428/A

Electrical Characteristics (@TA = +25ºC, VIN = 5.0V, VOUT = 2.5V, COUT = 10µF, L = 2.2µH, unless otherwise specified.)

Symbol

Parameter

Condition

Min

Typ

Max

Unit

VIN

Input Voltage Range

—

2.5

—

5.5

V

VOUT

Output Voltage Range

—

0.6

—

VIN

V

IQ

Quiescent Current

VFB = 0.65V

—

40

—

µA

ISD

Shutdown Current

VEN = 0V

—

0.1

1

µA

VFB

Regulated Feedback Voltage

—

0.588

0.6

0.612

V

IFB

FB Leakage Current

VFB = 1V

—

—

0.2

µA

ILIM

Peak Inductor Current

—

1.3

—

—

A

fOSC

Oscillator Frequency

—

—

1.5

—

MHz

RDS(ON)

Drain-Source On-State

Resistance

ISW = 100mA High Side

—

250

—

mΩ

ISW = 100mA Low Side

—

170

—

mΩ

RDISCH

Output Discharge Switch On

Resister

—

—

2.1

—

k

Ω

VENH

EN Threshold High

—

1.5

—

—

V

VENL

EN Threshold Low

—

—

—

0.4

V

IEN

EN Leakage Current

VIN = VEN = 5V

-1.0

—

1.0

µA

VUVLO

Input UVLO Threshold

—

—

2.4

2.7

V

VHYS

UVLO Hysteresis

—

—

0.1

—

V

TOTP

Over Temperature Protection

—

—

+160

—

°C

TOTH

OTP Hysteresis

—

—

+15

—

°C

tSS

Soft-Start Time

—

—

2

—

ms