便携式设备上的电源分配

本文档介绍了使用便携式电器开关电源来控制外设功能的概念。
AN11159
Distributed power in portable devices
Rev. 1 ― 16 March 2012 Application note




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Keywords distributed power, Low DropOut (LDO) regulators, DC-to-DC converter,
load switch, quiescent current, load current
Abstract This document describes concepts for portable appliances using
switchable power supplies to control peripheral functions.
A focus is set on voltage conversion and power distribution in the
application. Many different voltages are required for the various ICs in
modern mobile systems. The central battery supplies power to ma