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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 2

One device replaces battery charger, pushbutton controller, LED driver and voltage regulator ICs in portable electronics

Marty Merchant

Abstract

The LTC3577/LTC3577-1 is described. This device integrates a number of portable device power management functions into one IC, reducing complexity, cost and board area in handheld devices.

Keywords

LTC3577

LTC3577-1

Integrated circuit

Introduction

The LTC3577/LTC3577-1 integrates a number of portable device power management functions into one IC, reducing complexity, cost and board area in handheld devices. The major functions include:

• Five voltage regulators to power memory, I/O, PLL, CODEC, DSP or a touch-screen controller

• A battery charger and PowerPath manager

• An LED ...

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