AP7312

DUAL 150mA LOW QUIESCENT CURRENT FAST

TRANSIENT LOW DROPOUT LINEAR REGULATOR

AP7312

Document number: DS35133 Rev. 2 - 2

1 of 18

www.diodes.com

January 2011

© Diodes Incorporated

Description

The AP7312 is 150mA, dual fixed output voltage, low dropout

linear regulator. The AP7312 include the pass element, error

amplifier, band-gap, current limit and thermal shutdown

circuitry which protect the

IC from damage in fault

conditions. The AP7312 has two enable pins (EN1 and EN2)

to independently turn the respective channel on when a logic

high level is applied.

The characteristics of low dropout voltage and low quiescent

current make it suitable for low power applications. The

typical quiescent current is approximately 60

μA.

This device is available with fixed output options of

1.2V/1.8V,

1.2V/3.3V,

1.5V/2.5V,

1.5V/3.3V,

1.8V/2.8V,

1.8V/3.0V, 1.8V/3.3V and 3.3V/3.3V.

For other output options please contact our local sales

representative directly or through our distributor located in

your area.

The

AP7312

is

available

in

SOT26 and

DFN2018-6

packages.

Features

•

150mA Low Dropout Regulator with EN

•

Very low IQ: 60µA

•

Wide input voltage range: 2V to 6V

•

Fixed output options: 1.2V to 3.3V

•

High PSRR: 65dB at 1kHz

•

Fast start-up time: 60µs

•

Stable with low ESR, 1µF ceramic output capacitor

•

Excellent Load/Line Transient Response

•

Low dropout: 150mV at 150mA

•

Current limit protection

•

Short circuit protection

•

Thermal shutdown protection

•

Ambient temperature range: -40ºC to 85°C

•

SOT26 and DFN2018-6: Available in “Green” Molding

Compound (No Br, Sb)

•

Lead Free Finish/RoHS Compliant (Note 1)

Pin Assignments

1

3

2

6

4

OUT2

GND

EN2

EN1

OUT1

5 IN

(Top View)

SOT26

IN

EN1

EN2

1

2

3

6

5

4

OUT1

OUT2

GND

(Top View)

DFN2018-6

Applications

•

Cellular Phones

•

Smart Phones, PDAs

•

MP3/MP4

•

Bluetooth head set

•

Low power application

Note:

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.