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reference designBD95831MUV

ROHM BD95831MUV

7.5V to 15V, 3A 1ch Synchronous Buck Converter

Overview

TopologyBuck Converter
Input voltage7.5-15 V
Switching frequency500-800 kHz
Output 13.3 V / 3 A
Output 21.8 V / 3 A
Output 31 V / 3 A
Output 41.2 V / 3 A
IC revision001

Description

BD95831MUV is a 1ch synchronous buck converter that can generate output voltage (0.8V to 5.5V) at the input voltage range (7.5V to 15V). Space-saving and high efficient switching regulator can be achieved due to built-in N-MOSFET power transistors. The IC also incorporates H3Reg™ technology, a Rohm proprietary constant ONTIME control mode which facilitates ultra-high transient response against changes in load without external compensation components. Fixed soft start function, power good function, and short circuit / over voltage protection with timer latch functions are incorporated. The BD95831MUV is designed for power supplies for Digital AV Equipment.

Features

  • Fast Transient Responses due to H3Reg control
  • Over Current Protection (OCP) – Cycle-by-Cycle
  • Thermal Shut Down (TSD)
  • Under-Voltage Lock-Out (UVLO)
  • Short Circuit Protection (SCP)
  • Over Voltage Protection (OVP)
  • Fixed Soft Start (1msec ; typ)
  • Power Good function

Typical applications

  • LCD TVs/ Set Top Boxes (STB)/ DVD/Blu-ray players/recorders/ Amusement
  • Broadband Network and Communication Interface

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Mount
SamplesAvailability & Sample
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74437336015
SPECWE-LHMI SMT Power Inductor, 1.5 µH, 7.8 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance1.5 µH
Performance Rated Current7.8 A
Saturation Current @ 10%7.7 A
Saturation Current @ 30%14.2 A
DC Resistance25 mΩ
Self Resonant Frequency45 MHz
MountSMT 
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74437336022
SPECWE-LHMI SMT Power Inductor, 2.2 µH, 6.2 A
Simu­lation
Availability
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Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance2.2 µH
Performance Rated Current6.2 A
Saturation Current @ 10%7 A
Saturation Current @ 30%14 A
DC Resistance35 mΩ
Self Resonant Frequency42 MHz
MountSMT 
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74437336033
SPECWE-LHMI SMT Power Inductor, 3.3 µH, 5.45 A
Simu­lation
Availability
–
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance3.3 µH
Performance Rated Current5.45 A
Saturation Current @ 10%5.55 A
Saturation Current @ 30%10.9 A
DC Resistance38 mΩ
Self Resonant Frequency27 MHz
MountSMT 
–Check availability