RT9903B Datasheet 4 Channel DC/dc Converters Ic

Manufacturer: Richtek Technology Corporation

Overview: Preliminary RT9903B 4 Channel DC/DC Converters IC with High-Efficiency.

Datasheet Details

Part number	RT9903B
Manufacturer	Richtek Technology Corporation
File Size	456.99 KB
Description	4 Channel DC/DC Converters IC
Datasheet	RT9903B_RichtekTechnologyCorporation.pdf

The RT9903B is a plete 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.

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 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.

Part Number	Description
RT9903	5 Channel DC/DC Converters IC
RT9901	4 Channel DC/DC Converters IC
RT9902	4 Channel DC/DC Converters IC
RT9907	3-Channel DC/DC Converters
RT9911	6 Channel DC/DC Converters
RT9917	7 Channel DC/DC Converters
RT9921	Integrated Multi-Channel DC-DC Converter
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