AP7351D

Document number: DS42111 Rev. 4 - 2

2 of 18

www.diodes.com

24 November 2020

© Diodes Incorporated

AP7351D

Pin Descriptions

Pin Number

Pin Name

Function

X2-DFN1010-4

(Type B)

SOT25

1

5

VOUT

Output Voltage Pin

2

2

GND

Ground

3

3

EN

Enable Pin

This pin should be driven either high or low and must not be floating. Driving this pin high

enables the regulator, while pulling it low puts the regulator into shutdown mode

4

1

VIN

Power Input Pin

—

4

NC

No connection for fixed VOUT versions.

EP

—

Exposed Pad

In PCB layout, prefer to use large copper area to cover this pad for better thermal dissipation,

then connect this area to GND or leave it open. However, do not use it as GND electrode

function alone

Functional Block Diagram

VIN

EN

GND

VOUT

Current Limit

VREF

-

+

AP7351D (With Discharge)

Absolute Maximum Ratings (Note 5)

Note:

5. Stresses beyond those listed under Absolute Maximum Ratings can cause permanent damage to the device. These are stress ratings only and

functional operation of the device at these conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods can affect

device reliability.

Recommended Operating Conditions

Symbol

Parameter

Ratings

Unit

ESD HBM

Human Body Mode ESD Protection

> 2

kV

ESD CDM

Charge Device Model

±500

V

VIN

Input Voltage

6.0

V

VEN

Input Voltage for EN Pin

6.0

V

VOUT

Output Voltage

-0.3 to VIN + 0.3

V

PD

Power Dissipation

400

mW

TA

Operating Ambient Temperature

-40 to +85

°C

TJ

Operating Junction Temperature

+125

°C

TSTG

Storage Temperature

-55 to +125

°C

Symbol

Parameter

Min

Max

Unit

VIN

Input Voltage

1.4

5.5

V

IOUT

Output Current

0

150

mA

TA

Operating Ambient Temperature

-40

+85

°C