RT9953 Datasheet (Richtek Technology Corporation)

RT9953, 41 CH Power Management IC

The RT9953 is a complete power supply solution for digital still cameras and other handheld devices.

The RT9953 is a multi-CH power management IC including one synchronous step-up DC/DC converter, one selectable synchronous step-up/step-down DC/DC converter, two synchronous step-down DC/DC converter

RT9953 Features

* z One Synchronous Step-Up/Step-Down Selectable Converter Support 2AA or Li-ion Battery Applications Internal Soft-Start Control 4 CHs with Internal Compensation Power Switches Integrated Up to 95% Efficiency 100% (max) Duty Cycle for Step-Down Converter Adjustable Output Voltage Fixed 1MHz Switchin