AP7175

Document number: DS35606 Rev. 4 - 3

1 of 14

www.diodes.com

January 2017

© Diodes Incorporated

AP7175

NOT RECOMMENDED FOR NEW DESIGN -

NO ALTERNATE PART

3A ULTRA LOW DROPOUT LINEAR REGULATOR WITH ENABLE

Description

The AP7175 is a 3.0A ultra low-dropout (LDO) linear regulator that

features an enable input and a power-good output.

The enable input and power-good output allow users to configure

power management solutions that can meet the sequencing

requirements of FPGAs, DSPs, and other applications with different

start-up and power-down requirements.

The AP7175 features two supply inputs, for power conversion supply

and control. With the separation of the control and the power input

very low dropout voltages can be reached and power dissipation is

reduced.

A precision reference and feedback control deliver 1.5% accuracy

over load, line, and operating temperature ranges.

The AP7175 is available in SO-8EP and MSOP-8EP package with an

exposed PAD to reduce the junction to case resistance and extend

the temperature range it can be used in.

Features





Adjustable output voltage





Fast transient response





Internal Softstart



Stable with Low ESR MLCC Capacitors



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free. “Green” Device (Note 3)

Pin Assignments

GND

FB

EN

PG

SO-8EP

(Top View)

8

7

6

5

1

2

3

4

2

GND

FB

EN

PG

MSOP-8EP

(Top View)

1

3

4

8

7

6

5

Applications



Notebook



PC



Netbook



Wireless Communication



Server



Motherboard



Dongle



Front Side Bus VTT (1.2V/3.3A)

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html

for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-

free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

Typical Applications Circuit

ON

OFF

PG

EN

FB

GND

C1

R1

R2

R3

10µF

1µF

5.1K

Ω

10µF

24K

Ω

12K

Ω

AP7175

Figure 1. Typical Application Circuit