AP7217

500mA CMOS LDO

AP7217

Document number: DS31292 Rev. 4 - 2

1 of 10

www.diodes.com

April 2010

© Diodes Incorporated

Description

The AP7217 low-dropout linear regulator operates from a

3.3V to 5.5V supply and delivers a guaranteed 500mA (min)

continuous load current.

The high-accuracy output voltage is preset to an internally

trimmed voltage. An active-low open-drain reset output

remains asserted for at least 20ms (TYP) after output voltage

reaches

The space-saving SOP-8L package is suitable for “pocket”

and hand-held applications.

Features

•

Very Low Dropout Voltage

•

Low Current Consumption: Typ. 50

μA

•

Output Voltage: 3.3V

•

Guaranteed 500mA (min) Output

•

Input Range up to 5.5V

•

Current Limiting

•

Stable with either electrolytic capacitor or low-ESR MLCC

(multi-layer ceramic capacitor) Low Temperature

Coefficient

•

SOP-8L: Available in “Green” Molding Compound

(No Br, Sb)

•

Lead Free Finish/ RoHS Compliant (Note 1)

Pin Assignments

1

2

3

4

6

5

EN

SOP-8L

AP7217

( Top View )

NC

NC

GND

NC

8

7

Applications

•

HD/ BlueRay DVD & MP3/4 Players

•

Mobile Handsets and Smartphones

•

Digital Still Camera

•

Hand-Held Computers

Notes:

1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

http://www.diodes.com/products/lead_free.html.

Typical Application Circuit

AP7217

V

IN

VD

OUT

VR

OUT

EN

GND

100K

VD

OUT

U1

4

6

2

8

V

IN

C

IN

1uF

7

C

OUT

1uF

ON

OFF

VR

OUT