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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 154

Wide input voltage range buck-boost converter simplifies design of variable input supplies

John Canfield

Abstract

A wide input voltage range buck-boost converter that simplifies design of variable input supplies is described.

Keywords

Buck-boost converter

LTC3530

Introduction

Many of today’s portable electronic devices require the ability to operate from a variety of power sources including USB, wall adapters, and alkaline and lithium batteries. Designing a power conversion solution that is compatible with this wide array of power sources can be daunting. The LTC3530 monolithic synchronous converter simplifies the task by operating in both buck and boost modes over an extended input voltage range of 1.8V to 5.5V. No complicated ...

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