2.9 to 5.1 volt powered, inductor-less step up DC to DC converter

摘要

A voltage converter for a portable electronic includes a first switching circuit for charging a first capacitor responsively to a first control signal and a second switching circuit for charging a second capacitor responsively to a second control signal. The first and second switching circuits are further adapted to enable charging of the first capacitor to a greater potential than the first switching circuit alone.