描述 Description

The MP8666 is a monolithic step-down switch mode converter with a built in high-side internal power MOSFET and a gate driver for a low-side external MOSFET. It achieves 6A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle?y?ycle current limiting and thermal shutdown. The MP8666 requires a minimum number of readily available standard external components and is available in an 8-pin SOIC package with exposed pad.

特性 Features

● Wide 4.5V to 21V Operating Input Range
● 6A Continuous Output Current
● 45mO Internal Power MOSFET Switch
● Synchronizable Gate Driver Delivers up to 95% Efficiency
● Fixed 600kHz Frequency
● Synchronizable up to 1.5MHz
● Cycle-by-Cycle Over Current Protection with Hiccup
● Thermal Shutdown
● Output Adjustable from 0.8V
● Stable with Low ESR Output Ceramic Capacitors
● Available in a Thermally Enhanced 8-Pin SOIC Package

簡(jiǎn)介

MP8666屬于集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器。由制造生產(chǎn)的MP8666DC-DC 開關(guān)控制器PMIC（電源管理集成電路）DC 到 DC 開關(guān)式控制器是用于高效率電路的穩(wěn)壓 IC，其配置為生成高于（突升或步升）或低于（突降或步降）輸入電源的輸出電源電壓。其他拓?fù)浣Y(jié)構(gòu)可能包括：降壓-升壓、反激、正激、Cuk、SEPIC、全橋、半橋和推挽式。這些器件不同于需要最小電壓并“燒盡”多余電壓的線性穩(wěn)壓器。