AP7175

Document number: DS35606 Rev. 4 - 3

2 of 14

www.diodes.com

January 2017

© Diodes Incorporated

AP7175

NOT RECOMMENDED FOR NEW DESIGN -

NO ALTERNATE PART

Pin Descriptions

Pin

Name

Pin Number

Function

SO-8EP

MSOP-8EP

GND

1

1

Ground

FB

2

2

3/4

3/4

Power Output Pin. Connect at least 10µF capacitor to this pin to improve transient response and

required for stability. When the part is disabled the output is discharged via an internal pull-low

MOSFET.

5

5

Power Input Pin for current supply. Connect a decoupling capacitor

(≥10µF) as close as possible to

the pin for noise filtering.

6

6

BIAS supply for the controller, recommended 5V. Connect a decoupling capacitor (≥1µF) as close

as possible to the pin for noise filtering.

PG

7

7

go below their thresholds.

EN

8

8

Enable pin. Driving this pin low will disable the part. When left floating an internal current source will

pull this pin high and enable it.

PAD

EP

EP

Functional Block Diagram

Power On Reset

(POR)

5µA

0.8V

Ref

Control Logic

SoftStart

EN

Thermal

Shutdown

Current Limit

and

Short Circuit

0.8V

Ref

Delay

POR

PG

FB

GND

Error

Amp