Description
The L6920DC is a high efficiency monolithic step up switching converter IC especially designed for battery powered application.
   
General features
■ 0.8V start up input voltage
■ Up to 5.5V operating input voltage
■ Internal synchronous rectifier
■ Adjustable output voltage from 1.8V to 5.5V
■ 3.3V and 5V fixed output voltages
■ Low battery voltage detection
■ Reverse battery protection
■ 550mA minimum input current limit
■ Switching frequency up to 1MHz
■ 1.23V reference voltage available
   
Applications
■ Conversion from 1 to 3 alkaline,
■ NiMH, NiCd battery cells or 1 lithium ION
■ PDA and handheld instruments
■ Digital cameras
■ Cellular phones
■ GPS
■ Distributed power