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APL5912

0.8V Reference Ultra Low Dropout (0.2V@5A) Linear Regulator

Anpec Electronics 

APL5912

0.8V Reference Ultra Low Dropout (0.2V@5A) Linear Regulator

Features

• Ultra Low Dropout

- 0.2V (Typical) at 5A 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-8P Package with Exposed Pad

• Lead Free and Green Devices Available

(RoHS Compliant)

Applications

• Front Side Bus VTT (1.2V/5A)

• Note Book PC Applications

• Motherboard Applications

General Description

The APL5912 is a 5A ultra low dropout linear regulator.

This product is specifically designed to provide well sup-

ply voltage for front-side-bus termination on motherboard

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 APL5912 integrates many functions. A Power-On-

Reset (POR) circuit monitors both supply voltages to pre-

vent wrong operations. A thermal shutdown and current-

limit functions protect the device against thermal and cur-

rent over-loads. A POK indicates the output status with

time delay which is set internally. It can control other con-

verter for power sequence. The APL5912 is enabled by

other power system. Pulling and holding the EN pin be-

low 0.3V shuts off the output.

The APL5912 is available in a SOP-8P package which

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

reduce the junction-to-case resistance, being applicable

in 2~2.5W applications.

Pin Configuration

GND 1

FB 2

VOUT 3

VOUT 4

8 EN

VIN

7 POK

6 VCNTL

5 VIN

SOP-8P (Top View)

= Exposed Pad

(connected to the VIN plane for better

heat dissipation)

Copyright © ANPEC Electronics Corp.

1

Rev. A.10 - Oct., 2009

www.anpec.com.tw

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