General Description

ROHM’s highly-efficient step-up/down switching regulator BD8301MUV produces step-up/down output including 3.3 V from 1 cell of lithium battery with just one coil.

This IC adopts an original step-up/down drive system and creates a higher efficient power supply than conventional Sepic-system or H-bridge system switching regulators.

Features

1) Highly-efficient step-up/down DC/DC converter to be constructed just with one inductor.

2) Input voltage 2.5 V - 5.5 V

3) Output current 1 A at 3.3 V 800 mA at 5.0 V

4) Incorporates soft-start function.

5) Incorporates timer latch system short protecting function.

6) High heat radiation surface mounted package VQFN020V4040

Application

General portable equipment likeportable audio or DSC/DVC