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