Product Features

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 3mm x 4mm 14-pin QFN package.

Product 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 QFN3x4 Package

Product Applications

• Notebook Systems and I/O Power

• Networking Systems

• Digital Set Top Boxes

• Personal Video Recorders

• Flat Panel Television and Monitors

• Distributed Power Systems

Product Photos

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