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HIP5020
Data Sheet January 1997 File Number
4243
Integrated-Power Buck Converter Controller with Synchronous Rectification
The HIP5020 is a high-efficiency, buck converter controller with synchronous rectification and integral power MOSFETs. Integrated current sensing eliminates the external resistor and saves power. The controller combines two methods of regulation: Current mode control for outstanding regulation response to large signal load transients, and Hysteretic mode control for high efficiency at low output currents. The HIP5020 controller offers a high degree of flexibility. Small components set the switching frequency, the soft-start interval and the load current boundary between Run and Hysteretic modes.