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reference designBD9B200MUV

ROHM BD9B200MUV

2.7V to 5.5V Input, 2.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter

Overview

TopologyBuck Converter
Input voltage5 V
Switching frequency1000-2000 kHz
Output 11.2 V / 2 A
Output 21.5 V / 2 A
Output 33.3 V / 2 A
Output 41 V / 2 A
Output 51.8 V / 2 A
IC revision002

Description

BD9B200MUV is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. This IC, which is capable of providing current up to 2A, features fast transient response by employing constant on-time control system. It offers high oscillating frequency at low inductance. With its original constant on-time control method which operates low consumption at light load, this product is ideal for equipment and devices that demand minimal standby power consumption.

Features

  • Synchronous Single DC/DC Converter
  • Constant on-time control suitable to Deep-SLLM
  • Over Current Protection
  • Short Circuit Protection
  • Thermal Shutdown Protection
  • Under Voltage Lockout Protection
  • Adjustable Soft Start
  • Power Good Output
  • VQFN016V3030 Package (Backside Heat Dissipation)

Typical applications

  • Storage Devices (HDDs/SSDs)
  • LCD TVs/ Printers/ OA Equipment/ Entertainment Devices
  • Laptop PCs/Tablet PCs/Servers
  • Step-down Power Supply for DSPs, FPGAs,Microprocessors, etc. Distributed Power Supply, Secondary Power Supply

More information

Parts approved by ROHM

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
SamplesAvailability & Sample
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74438324010
SPECWE-MAPI SMT Power Inductor, 1 µH, 4.05 A
Simu­lation
Availability
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Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance1 µH
Performance Rated Current4.05 A
Saturation Current @ 30%6.3 A
DC Resistance49 mΩ
Self Resonant Frequency85 MHz
Operating Voltage80 V
MountSMT 
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