Monolithic Power Systems MP28255

Beschreibung

The MP28255 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 4A continuous output current over a wide input supply range with excellent load and line regulation. The MP28255 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 MP28255 requires a minimum number of readily available standard external components and is available in a space saving 3mm x 4mm 14-pin QFN package.

Eigenschaften

• Wide 4.5V to 21V Operating Input Range
• 4A 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

Typische Anwendungen

• Digital Set Top Boxes
• Personal Video Recorders
• Networking Systems
• Flat Panel Television and Monitors
• Distributed Power Systems

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers