The MP8668 is a monolithic step-down switch mode converter with a built in internal power MOSFET. It achieves 8A 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-by-cycle current limiting and thermal shutdown. The MP8668 requires a minimum number of readily available standard external components and is available in a space saving 3mm x 4mm 14-pin QFN package.Wide 4.5V to 21V Operating Input Range 8A Continuous Output Current 42m? Internal Power MOSFET Switch Power Good Indicator Synchronous 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 3mm x 4mm 14-Pin QFN Package