AP7168

1.2A LOW DROPOUT REGULATOR WITH POK

AP7168

Document number: DS32019 Rev. 2 - 2

2 of 11

www.diodes.com

September 2010

© Diodes Incorporated

Pin Descriptions

Name

Pin Number

Description

IN

1

Voltage input pins, to be tied together externally. Bypass to ground through at least 1µF capacitor.

POK

2

Power-OK output, active-high open-drain.

EN

4

Enable input, active high.

GND

5

Ground.

FB

7

Output feedback.

OUT

8

Voltage output pins, to be tied together externally. Bypass to ground through at least 4.7µF

ceramic capacitor.

NC

3, 6

No connection.

Functional Block Diagram

IN

EN

GND

FB

OUT

Gate

Driver

0.8V

0.744V

POK

Current Limit

and Thermal

Shutdown

Absolute Maximum Ratings

Symbol

Parameter

Ratings

Unit

ESD HBM

Human Body Model ESD Protection

4

KV

ESD MM

Machine Model ESD Protection

300

V

Input Voltage

7

V

OUT, FB, POK, EN Voltage

V

Continuous Load Current

Internal Limited

Operating Junction Temperature Range

-40 ~ 150

°C

Storage Temperature Range

-65 ~150

°C

Power Dissipation

SO-8EP (Note 2, 4)

4.0

W

Notes:

2. Ratings apply to ambient temperature at 25°C

Recommended Operating Conditions

Symbol

Parameter

Min

Max

Unit

Input voltage

2.2

5.5

V

Output Current

0

1.2

A

Operating Ambient Temperature

-40

85

°C