IC manufacturers ROHM

IC manufacturers (103)

ROHM BD8303MUV

Synchronous Buck-Boost Controller

Overview

TopologyBuck Converter
Input voltage4-14 V
Switching frequency480-720 kHz
Output 112 V / 1.5 A
IC revision002+

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

Typical applications

  • Portable DVDs player, Mobile PCs, DVC, Single-Lens Reflex Cameras

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
Size
Operating Temperature
Q(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
L(µH)
ISAT,10%(A)
ISAT,30%(A)
IR,40K(A)
IRP,40K(A)
RDC max.(mΩ)
fres(MHz)
Version
Samples
WCAP-CSGP MLCCs 50 V(DC), 68 pF, ±5%
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Capacitance68 pF
Capacitance±5% 
Rated Voltage50 V (DC)
Size0402 
Operating Temperature -55 °C up to +125 °C
Q-Factor1000 %
Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Length1 mm
Width0.5 mm
Height0.5 mm
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
WE-PD SMT Power Inductor, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Size1280 
Operating Temperature -40 °C up to +125 °C
Length12 mm
Width12 mm
Height8 mm
Inductance4.7 µH
Saturation Current @ 10%11 A
Saturation Current @ 30%14.3 A
Rated Current9.5 A
Performance Rated Current11 A
DC Resistance12 mΩ
Self Resonant Frequency31.2 MHz
VersionStandard