FAN2103MPX_12 datasheet(1/14 Pages) FAIRCHILD

Part #	FAN2103MPX

Description	3 A, 24 V Input, Integrated Synchronous Buck Regulator

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

Direct Link	http://www.fairchildsemi.com

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November 2012

www.fairchildsemi.com

FAN2103 • Rev. 1.0.8

FAN2103 — TinyBuck™

3 A, 24 V Input, Integrated Synchronous Buck

Regulator

Features

 3 A Output Current

 Over 95% Efficiency

 Fully Synchronous Operation with Integrated

Schottky Diode on Low-side MOSFET Boosts

Efficiency

 Programmable Frequency Operation (200 KHz to

600 KHz)

 Power-good Signal

 Accepts Ceramic Capacitors on Output

 External Compensation for Flexible Design

 Wide Input Range: 3 V to 24 V

 Output Voltage Range: 0.8 V to 90%V

IN

 Input Under-Voltage Lockout

 Programmable Over-Current Limit

 Under-Voltage, Over-Voltage, and

Thermal Protections

 5x6 mm, 25-pin, 3-Pad MLP

Applications

 Graphics Cards

 Battery-powered Equipment

 Set-top Boxes

 Point-of-load Regulation

 Servers

Description

The FAN2103 TinyBuck™ is an easy-to-use, cost- and

space-efficient, 3 A synchronous buck solution. It

enables designers to solve high current requirements in

a small area with minimal external components.

External

compensation,

programmable

switching

frequency, and current limit features allow for design

optimization and flexibility.

The summing current mode modulator uses lossless

current sensing for current feedback and over-current,

and includes voltage feedforward.

Fairchild’s advanced BiCMOS power process, combined

with low RDS(ON) internal MOSFETs and a thermally

efficient MLP package provide the ability to dissipate

high power in a small package.

Output

over-voltage,

under-voltage,

and

thermal

shutdown protections plus power-good, help protect the

devices from damage during fault conditions.

Related Application Notes

 TinyCalc™ Design Tool

 AN-6033 — TinyCalc™ Design Tool Guide

 AN-5067 – PCB Land Pattern Design and Surface

Mount Guidelines for MLP Packages

Ordering Information

Part Number

Operating

Temperature Range

Package

Packing Method

FAN2103MPX

-10°C to 85°C

25-Pin Molded Leadless Package (MLP) 5x6 mm

Tape and Reel

FAN2103EMPX

-40°C to 85°C

25-Pin Molded Leadless Package (MLP) 5x6 mm

Tape and Reel

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