Chapter 99

Single IC, five output switching power supply system for portable electronics

Steve Hobrecht

Abstract

A single IC, five output switching power supply system for portable electronics, is described.

Keywords

Switching power supply

Portable electronics

LTC1538-AUX

The drive for higher performance portable electronic systems, concomitant with the need to remain compatible with existing interfacing standards and hardware, has caused the number of system power supply voltages to proliferate. This Design Note describes how to generate five separate output voltages using the LTC1538-AUX, a dual synchronous switching regulator controller with internal circuitry adaptable to many additional configurations. The five output voltages ...

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