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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 42

15VIN, 4MHz monolithic synchronous buck regulator delivers 5A in 4mm × 4mm QFN

Tom Gross

Abstract

The LTC3605, a high efficiency, monolithic synchronous step-down switching regulator that is capable of delivering 5A of continuous output current from input voltages of 4V to 15V, is described.

Keywords

Synchronous buck regulator

LTC3605

Introduction

The LTC3605 is a high efficiency, monolithic synchronous step-down switching regulator that is capable of delivering 5A of continuous output current from input voltages of 4V to 15V. Its compact 4mm × 4mm QFN package has very low thermal impedance from the IC junction to the PCB, such that the regulator can deliver maximum power without the need for a heat sink. A single LTC3605 ...

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