Description

Micropower Synchronous Buck-Boost DC/DC Converter Features: Single Inductor Fixed Frequency Operation with Battery Voltages Above, Below or Equal to the Output Synchronous Rectification: Up to 96% Efficiency 25µA Quiescent Current in Burst Mode® Operation Up to 600mA Continuous Output Current No Schottky Diodes Required (VOUT < 4.3V) VOUT Disconnected from VIN During Shutdown 2.5V to 5.5V Input and Output Range Programmable Oscillator Frequency from 300kHz to 2MHz Synchronizable Oscillator Burst Mode Enable Control <1µA Shutdown Current Small Thermally Enhanced 10-Pin MSOP and (3mm × 3mm) DFN Packages