RT9902 Datasheet - Richtek Technology Corporation

RT9902 4 Channel DC/DC Converters IC

The RT9902 is a complete power supply solution for digital still cameras and other hand-held devices. It integrates a high-efficiency main step-up DC-DC converter, two highefficiency step-down converters, a charge pump, and a linear controller that drives an external P-MOSFET for linear www.DataShee.

RT9902 Features

* z z z z z z z z z z z z z z 1.5V to 5.5V Battery Input Voltage Range Main step-up DC-DC Converter `1.5V to 5.5V Adjustable Output Voltage `Up to 90% Efficiency `2.6A, 0.3Ω Internal Power Switch Two Step-Down DC-DC Converters `0.8V to 5.5V Adjustable Output Voltage `94% Efficiency `100% Duty Cycle

RT9902_RichtekTechnologyCorporation.pdf