MP28253中文资料21V, 3A, 500kHz Synchronous Step-down Converter数据手册MPS规格书

描述 Description

The MP28253 is a high frequency synchronous rectified step-down switch mode converter with built in internal power MOSFETs. It offers a very compact solution to achieve 3A continuous output current over a wide input supply range with excellent load and line regulation. The MP28253 operates at high efficiency over a wide output current load range.?Current mode operation provides fast transient response and eases loop stabilization. Full protection features include OCP and thermal shut down.?The MP28253 requires a minimum number of readily available standard external components and is available in a space saving 3x4mm 14-pin QFN package.

特性 Features

● Wide 4.5V to 21V Operating Input Range
● 3A Output Current
● Low RDS(ON) Internal Power MOSFETs
● Proprietary Switching Loss Reduction Technique
● Fixed 500kHz Switching Frequency
● External Soft-Start
● Sync from 300kHz to 2MHz External Clock
● Internal Compensation
● Integrated Bootstrap Diode
● Over-Current Protection and Hiccup
● Thermal Shutdown
● Output Adjustable from 0.8V
● Available in 14-Pin QFN 3x4mm Package