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APL5913

0.8V Reference Ultra Low Dropout (0.25V@3A) Linear Regulator

Anpec Electronics 

APL5913

0.8V Reference Ultra Low Dropout (0.25V@3A) Linear Regulator

Features

General Description

• Ultra Low Dropout

- 0.25V(typical) at 3A Output Current

• Low ESR Output Capacitor (Multi-layer Chip

Capacitors (MLCC)) Applicable

• 0.8V Reference Voltage

• High Output Accuracy

- ±1.5% over Line, Load and Temperature

• Fast Transient Response

• Adjustable Output Voltage by External

Resistors

• Power-On-Reset Monitoring on Both VCNTL

and VIN Pins

• Internal Soft-Start

• Current-Limit Protection

• Under-Voltage Protection

• Thermal Shutdown with Hysteresis

• Power-OK Output with a Delay Time

• Shutdown for Standby or Suspend Mode

• Simple SOP-8-P Package with Exposed Pad

• Lead Free Available (RoHS Compliant)

The APL5913 is a 3A ultra low dropout linear regulator.

This product is specifically designed to provide well

supply volatage for front-side-bus termination on

motherboards and NB applications. The IC needs two

supply voltages, a control voltage for the circuitry and

a main supply voltage for power conversion, to reduce

power dissipation and provide extremely low dropout.

The APL5913 integrates many functions. A Power-On-

Reset (POR) circuit monitors both supply voltages to

prevent wrong operations. A thermal shutdown and

current limit functions protect the device against

thermal and current over-loads. A POK indicates the

output status with time delay which is set internally. It

can control other converter for power sequence. The

APL5913 can be enabled by other power system.

Pulling and holding the EN pin below 0.3V shuts off

the output.

The APL5913 is available in SOP-8-P package which

features small size as SOP-8 and an Exposed Pad to

reduce the junction-to-case resistance, being applicable

in 2~3W applications.

Pin Configuration

Applications

• Front Side Bus VTT (1.2V/3A)

• Note Book PC Applications

• Motherboard Applications

GND 1

8 EN

FB 2

VOUT 3

VIN

7 POK

6 VCNTL

VOUT 4

5 VIN

SOP-8-P (Top View)

= Exposed Pad

(connected to VIN plane for better heat

dissipation)

Copyright © ANPEC Electronics Corp.

1

Rev. A.4 - May., 2005

www.anpec.com.tw

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