FAN4603MM18X【PDF 1/12 页】IC MOD BUCK PWR SUPPLY 6-MLP

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August 2010

FAN4603

600mA, Fully Integrated, Buck Power Supply Module

Features

Solder and Play DC/DC Converter;

No External Components Required

Up to 91% Efficiency

600mA Output Current Capability

2.3V to 5.5V Input Voltage Range

Fixed Output Voltages from 1.0V to 1.8V

35μA PFM Quiescent Current

Best-in-Class Load and Line Transient Response

±2% PWM DC Voltage Accuracy

No External Components Required

High-Efficiency, Low-Ripple, Light-Load PFM

Thermal Shutdown (TSD), Under-Voltage Lockout,

(UVLO), and Short-Circuit (SCP) Protection

4.0 x 2.5mm MLP Package

Maximum Height: 1.1mm

Applications

POL and Distributed DC-DC Module Applications

Small Form Factor, Battery-Powered Applications

POL Core Power for FPGA, DSP, CPU, and GPU with

Fast-Transient, Wide Dynamic Load Requirements

Wireless Cards, Meters, Hearing Aids, Bluetooth

Headsets, POS Equipment, VOIP, PDAs, MIDs,

Netbooks, and Servers

Ordering Information

Description

The FAN4603 is a fully integrated synchronous DC/DC buck

converter that provides up to 600mA of output current over an

input voltage ranging from 2.3V to 5.5V. It provides a fixed

output voltage level ranging from 1.0V to 1.8V. Other voltage

options are available on request.

The FAN4603 converter is offered as an ultra-miniature

“Solder and Play” solution that requires no external

components and is able to achieve a DC accuracy of ±2%

PWM and an output ripple less than 12mV.

Total footprint is 4.0 x 2.5mm with a maximum height of

1.1mm. It can be used in small battery-powered devices and

applications with distributed DC POL requirements.

At moderate and light loads, pulse frequency modulation is

used to operate the device in power-save mode with a typical

quiescent current of 35μA. Even with such a low quiescent

current, the part exhibits excellent transient response during

large load swings. At higher loads, the system automatically

switches to fixed-frequency control.

In shutdown mode, the supply current drops below 2μA,

reducing power consumption.

Output Voltage

Part Number

(1)

Package

Temperature Range

Packing

FAN4603MM18X

FAN4603MM15X

1.82V

1.5V

FAN4603MM13X

1.3V

6-Lead Molded Leadless Package (MLP),

4 x 2.5 x 1mm

–40 to 85°C

Tape and

Reel

FAN4603MM12X

FAN4603MM10X

1.23V

1.0V

Note:

1. Other voltage options are available on request. Contact a Fairchild representative.

? 2009 Fairchild Semiconductor Corporation

FAN4603 ? Rev. 1.0.1

www.fairchildsemi.com

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