RT9953 Datasheet, Richtek Technology Corporation

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 Sw.

for DSC as follows : CH1 is a synchronous step-up output for motor or DSC system I/O power CH2 is a selectable synchrono.

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 co.