Micrel MIC2166自适应降压电源控制方案

Micrel 公司的MIC2166是同步自适应降压电源控制器，工作电压4.5V到28V，工作频率600kHz，输出电流高达25A，输出电压可调低至0.8V，精度±1%。主要用于STB，网关，路由器和DSL调制解调器，打印机，扫描仪，图像和视频卡，服务器，PC和处理器核电源以及低压分布电源。本文介绍了MIC2166主要特性，方框图，应用电路以及8V-24V 到1.2V/10A评估板电路图和评估板材料清单（BOM）。

The Micrel MIC2166 is a synchronous adaptive on-time buck controller targeting high performance, cost sensitive applications such as set-top boxes, gateways, routers, computing peripherals, and telecom/networking equipment.

The MIC2166 operates over a supply range of 4.5V to 28V. It has an internal linear regulator which provides a regulated 5V supply to power the internal control circuitry.

MIC2166 operates at a constant 600kHz switching frequency and can be used to drive up to 25A of output current. The output voltage is adjustable down to 0.8V.
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