LMR10510参考设计电路|降压型稳压器应用电路

LMR10510降压型稳压器是单片式、高频、PWM器件，提供本地DC/DC转换所需所有主动功能，并以尽可能最小的PCB面积提供快速瞬态响应和精确调节。此篇主要介绍了LMR10510特性、应用范围、参考设计电路以及电路分析，帮助大家缩短设计时间。

LMR10510特性：3V到5.5V的输入电压范围；0.6V到4.5V的输入电压范围；低关断电流(30nA典型值)；电流式PWM工作

LMR10510典型应用范围：3.3V到5V轨负载点转换；空间受限型应用；工业分布式电源应用；电表；便携手持式仪表

LMR10510参考设计应用电路：

图1LMR10510内部结构图

TheLMR10510 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 5 pin SOT-23 and a 6 Pin WSON package. It provides all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area.

图2LMR10510参考设计图

TheLMR10510 supplies a regulated output voltage by switching the internal PMOS control switch at constant frequency and variable duty cycle. A switching cycle begins at the falling edge of the reset pulse generated by the internal oscillator. When this pulse goes low, the output control logic turns on the internal PMOS control switch.

LMR10510中文数据手册:点击下载

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