RT9971 Datasheet - Richtek

RT9971 7 CH Power Management IC

The RT9971 is a complete power supply solution for digital still cameras and other hand held devices. The RT9971 is a multi-channel power management IC including two stepup DC/DC converters, two step-down DC/DC converters, one selectable step-up/step-down DC/DC converter, one inverting DC/DC convert.

RT9971 Features

* l One Synchronous Step-Up or Step-Down Selectable Convertor l Support 2AA or Li-ion Battery Applications l Preset On/Off Sequence l 5 CHs with Internal Compensation l All Power Switches Integrated l Up to 95% Efficiency l 100% (max) Duty Cycle for Step-Down Converter l Adjustable Output Voltage l LE

RT9971-Richtek.pdf