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