General Description
BD8303MUV is ROHM’s high efficiency step-up/step-down switching regulator IC. It produces output of 3.3V / 5V from 1 cell of lithium battery, 4 batteries, or 2 cells of Li batteries with just one inductor.
This IC uses an original step-up/step-down drive system and provides a higher efficient power supply than conventional SEPIC-system or H-bridge system switching regulators.

FEATUREs
■ Highly-Efficient Step-Up/Step-Down DC/DC
   Converter Implemented with Just One Inductor
■ Supports High-Current Applications with External
   N-Channel FET
■ Incorporates a Soft-Start Function
■ Incorporates a Timer-Latch System with Short
   Circuit Protection Function

APPLICATIONs
General Portable Equipment
■ DVC
■ Single-Lens Reflex Cameras
■ Portable DVDs
■ Mobile PCs