The RT9911 is a complete power-supply solution for digital still cameras and other hand-held devices. It integrates one selectable Boost/Buck DC-DC converter, one highefficiency step-down DC-DC converter, one high-efficiency main step-up converter, one PWM converter for CCD positive voltage, one inverter for CCD negative voltage and one white LED driver for LCD backlight. The RT9911 is targeted for applications that use either two or three primary cells or a single lithium-ion battery. RT9911 is available in VQFN-40L 6x6. Each DC-DC converter has independent shutdown input.