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reference designBD9B300MUV | Demoboard BD9B300MUV

ROHM BD9B300MUV | Demoboard BD9B300MUV

2.7V to 5.5V Input, 3.0A Integrated MOSFET Buck DC/DC Converter

Overview

TopologyBuck Converter
Input voltage2.7-5.5 V
Switching frequency1000-2000 kHz
Output 11.5 V / 3 A
IC revision004

Description

BD9B300MUV is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. This IC, which is capable of providing current up to 3A, 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

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

More information

Products

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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
ISAT,10%(A)
RDC max.(mΩ)
SamplesAvailability & Sample
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74438356015
SPECWE-MAPI SMT Power Inductor, 1.5 µH, 8.6 A

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance1.5 µH
Performance Rated Current8.6 A
Saturation Current @ 30%10.2 A
DC Resistance16 mΩ
Self Resonant Frequency48 MHz
Operating Voltage80 V
MountSMT 
Saturation Current @ 10%4.8 A
DC Resistance19 mΩ
–Check availability
74437324015
SPECWE-LHMI SMT Power Inductor, 1.5 µH, 4.9 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance1.5 µH
Performance Rated Current4.9 A
Saturation Current @ 30%10.1 A
DC Resistance34.8 mΩ
Self Resonant Frequency64 MHz
Operating Voltage120 V
MountSMT 
Saturation Current @ 10%5.65 A
DC Resistance42 mΩ
–Check availability
74437334015
SPECWE-LHMI SMT Power Inductor, 1.5 µH, 6 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance1.5 µH
Performance Rated Current6 A
Saturation Current @ 30%13.6 A
DC Resistance26.5 mΩ
Self Resonant Frequency50 MHz
Operating Voltage120 V
MountSMT 
Saturation Current @ 10%6.6 A
DC Resistance30.5 mΩ
–Check availability
74437336015
SPECWE-LHMI SMT Power Inductor, 1.5 µH, 7.8 A
Simu­lation
Availability
–
Downloads9 files

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 @ 30%14.2 A
DC Resistance16 mΩ
Self Resonant Frequency45 MHz
Operating Voltage120 V
MountSMT 
Saturation Current @ 10%7.7 A
DC Resistance25 mΩ
–Check availability
74438357015
SPECWE-MAPI SMT Power Inductor, 1.5 µH, 8.2 A

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance1.5 µH
Performance Rated Current8.2 A
Saturation Current @ 30%11 A
DC Resistance17.1 mΩ
Self Resonant Frequency48 MHz
Operating Voltage80 V
MountSMT 
Saturation Current @ 10%5.55 A
DC Resistance20 mΩ
–Check availability