AP7335

300mA, Low Quiescent Current, Fast Transient

Low Dropout Linear Regulator

AP7335

Document number: DS32259 Rev. 2 - 2

1 of 17

www.diodes.com

September 2010

© Diodes Incorporated

Description

The AP7335 is a 300mA, adjustable and fixed output voltage,

low dropout linear regulator. The device included pass

element, error amplifier, band-gap, current limit and thermal

shutdown circuitry. The device is turned on when EN pin is

set to logic high level.

The characteristics of low dropout voltage and low quiescent

current make it suitable for low power applications, for

example, battery powered devices. The typical quiescent

current is approximately 35

μA. Built-in current-limit and

thermal-shutdown functions prevent IC from damage in fault

conditions.

This device is available with adjustable output from 0.8V to

5.0V, and fixed version with 0.8V, 1.0V, 1.2V, 1.5V, 1.8V,

2.0V, 2.5V, 2.8V, 3.0V, 3.3V and 3.9V outputs. Please

contact your local sales office for any other voltage options.

The

AP7335

is

available

in

SOT25

and

DFN2020-6

packages.

Features

•

300mA Low Dropout Regulator with EN

•

•

Wide input voltage range: 2V to 6V

•

Wide adjustable output: 0.8V to 5.0V

•

Fixed output options: 0.8V to 3.9V (0.1V step size

possible)

•

High PSRR: 65dB at 1kHz

•

Fast start-up time: 220µs

•

Stable with low ESR, 1µF ceramic output capacitor

•

Excellent Load/Line Transient Response

•

Low dropout: 150mV at 300mA

•

Current limit and short circuit protection

•

Thermal shutdown protection

•

Ambient temperature range: -40ºC to 85°C

•

SOT25, and DFN2020-6: Available in “Green” Molding

Compound (No Br, Sb)

•

Lead Free Finish/ RoHS Compliant (Note 1)

Applications

•

Smart Phones

•

MP3/MP4

•

Battery-powered devices

•

Bluetooth headset

Pin Assignments

SOT25 (Fixed Output)

IN

EN

OUT

(Top View)

5

3

2

1

GND

NC

4

SOT25 (Adj Output)

IN

EN

ADJ

OUT

(Top View)

5

4

3

2

1

GND

GND

OUT

DFN2020-6 (Fixed Output)

(Top View)

4

IN

EN

NC

5

3

2

1

NC

6

GND

OUT

DFN2020-6 (Adj Output)

(Top View)

4

IN

EN

NC

5

3

2

1

ADJ

6

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.