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RT9953
4+1 CH Power Management IC
General Description
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 converters, and one low dropout linear regulator. The RT9953 is designed to fulfill the applications for DSC as follows : CH1 is a synchronous step-up output for motor or DSC system I/O power CH2 is a selectable synchronous step-up/step-down output for motor or DSC system I/O power CH3 and CH4 are synchronous step-down outputs for DSP core and memory power supply CH5 is a 500mA, low dropout, low noise linear regulator with soft-start function.
RT9953 Datasheet
