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RT9903

Richtek Technology Corporation
Part Number RT9903
Manufacturer Richtek Technology Corporation
Description 5 Channel DC/DC Converters IC
Published Jul 30, 2008
Detailed Description Preliminary RT9903 5 Channel DC/DC Converters IC with High-Efficiency Step-Up General Description The RT9903 is a comp...
Datasheet PDF File RT9903 PDF File

RT9903
RT9903

Overview
Preliminary RT9903 5 Channel DC/DC Converters IC with High-Efficiency Step-Up General Description The RT9903 is a complete power-supply solution for digital still cameras and other hand-held devices.
It integrates a high-efficiency fours step-up DC-DC converters and a charge pump.
www.
DataSheet4U.
com Features z Two step-up DC-DC Converters (CH1, CH2) `HV Internal Switches `50mA Load Current One Step-up DC-DC Converter (CH3) `0.
2V Reference Voltage `HV Internal Switches `LED Brightness Dimming Control `Over Voltage Protection One Step-up DC-DC Converter (CH4) `External Switches `External Current Limit Setting Step-up Charge Pump (CH5) for CCD Negative Voltage `HV Internal Switches Up to 1.
4MHz Switching Frequency 1μA Supply Current in Shutdown Mode External Compensation Network for All Converters Programmable Soft Start Function (CH1, CH2, CH3, CH4) Independent Enable Pin to Shutdown Each Channel 24-Lead VQFN Package RoHS Compliant and 100% Lead (Pb)-Free z The two Step-up DC-DC c...


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