AP2303 Ver la hoja de datos (PDF) - Diodes Incorporated.

Número de pieza

componentes Descripción

Fabricante

AP2303

DDR BUS TERMINATION REGULATOR

Diodes Incorporated. 

Pin Descriptions

A Product Line of

Diodes Incorporated

AP2303

Pin Number

1

2

3

4

5, 7, 8

6

–

Pin Name

VIN

GND

VREFEN

VOUT

NC

VCNTL

Exposed Pad

Function

Unregulated input supply. A small 10µF MLCC should be connected from this pin to GND.

Ground

Reference voltage input and active low shutdown control pin. Pulling the pin to ground turns off

device by BJT or FET. When it is released, a soft-start will take for about 0.1ms.

Regulated voltage output. A minimum of 10µF ceramic capacitor to ground is required to assure

stability.

No Connection

VCNTL supplies the internal control circuitry and provides the drive voltage.

The exposed pad should be connected to ground copper for better heat dissipation performance.

Functional Block Diagram

VCNTL

6

Thermal

Shutdown

3

VREFEN

Enable

OTSD

Error

Amplifier

and

EN

Soft Start

VREF

Power On

Reset

VIN

1

POR

4

VOUT

AP2303

Document number: DS36546 Rev. 3 - 2

Current Limit

2

GND

2 of 15

www.diodes.com

September 2014

© Diodes Incorporated

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