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reference designBD9141MUV

ROHM BD9141MUV

4.5V to 13.2V, 2A 1ch Synchronous Buck Converter with Integrated FET

Overview

TopologyBuck Converter
Input voltage6.3-13.2 V
Switching frequency400-600 kHz
Output 15 V / 2 A
IC revision001

Description

The BD9141MUV is ROHM’s high efficiency step-down switching regulator designed to produce a low voltage including 5.0V/3.3V from 2 lithium cell power supply line. It offers high efficiency by using pulse skip control technology and synchronous switches, and provides fast transient response to sudden load changes by implementing current mode control.

Features

  • Fast Transient Response because of Current Mode PWM Control System
  • High Efficiency for All Load Ranges because of Synchronous Rectifier (Nch/Pch FET) and SLLMTM (Simple Light Load Mode)
  • Soft-Start Function
  • Thermal Shutdown and UVLO Functions
  • Short-Circuit Protection with Time Delay Function
  • Shutdown Function

Typical applications

  • Power Supply for LSI including DSP, Microcomputer and ASIC

More information

Parts approved by ROHM

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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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74437336047
SPECWE-LHMI SMT Power Inductor, 4.7 µH, 4.35 A
Simu­lation
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance4.7 µH
Performance Rated Current4.35 A
Saturation Current @ 10%3.85 A
Saturation Current @ 30%7.6 A
DC Resistance53 mΩ
Self Resonant Frequency25 MHz
MountSMT 
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