BD9E303EFJ-LB(H2)
7.0V to 36V Input, 3.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter

This is the product guarantees long time support in Industrial market. BD9E303EFJ-LB(H2) is a synchronous buck switching regulator with built-in power MOSFETs. It is a current mode control DC/DC converter and features high-speed transient response. Phase compensation can also be set easily.

Data Sheet Buy Sample
Data Sheet Buy Sample
  • Documents  
  • Tools  
  • Packaging & Quality  
  • FAQs
  • Contact Us

Product Detail

 
Part Number | BD9E303EFJ-LBH2
Status | Active
Package | HTSOP-J8
Unit Quantity | 250
Minimum Package Quantity | 250
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Industrial

ch

1

Integrated FET / Controller

Integrated FET

Topology

Buck

Synchronous / Nonsynchronous

Synchronous

Vin1(Min.)[V]

7.0

Vin1(Max.)[V]

36.0

Vout1(Min.)[V]

1.0

Vout1(Max.)[V]

28.8

Iout1(Max.)[A]

3.0

SW frequency(Max.)[MHz]

0.3

Light Load mode

No

EN

Yes

PGOOD

No

Operating Temperature (Min.)[°C]

Tj=-40

Operating Temperature (Max.)[°C]

Tj=150

Package Size [mm]

4.9x6(t=1)

Features:

  • Long Time Support Product for Industrial Applications.
  • Synchronous single DC/DC converter.
  • Over-Current Protection.
  • Short Circuit Protection.
  • Thermal Shutdown Protection.
  • Under voltage Lockout Protection.
  • Soft Start.
  • HTSOP-J8 package (Exposed Pad).

Evaluation
Board

 
    • Evaluation Board
    • BD9E303EFJ-EVK-001

    • BD9E303EFJ-EVK-001 Evaluation board delivers an output 5.0 volts from an input 7.0 to 36 volts using BD9E303EFJ-LB, a synchronous rectification step-down DC/DC converter integrated circuit, with output current rating of maximum 3A. The output voltage can be set by changing the external parts of circuit and the loop-response characteristics also can be adjusted by the phase compensation circuit.

  • User's Guide Design Data Buy
SHOW/HIDE COLUMNS
New Product List

Design Resources

 

Documents

White Paper

  • Industrial DC/DC Buck Converters BD9x Series
  • Cutting-Edge Web Simulation Tool “ROHM Solution Simulator” Capable of Complete Circuit Verification of Power Devices and Driver ICs

User's Guide

  • Evaluation Board User's Guide
  • Evaluation Board Data

Application Note

  • PCB Layout for BD9E303EFJ-LB

Reference Design

  • BD9E303EFJ-LB(H2) Reference Circuits and Bomlist

Technical Articles

Schematic Design & Verification

  • Buck DC/DC Converter Recommended Inductor List
  • Calculation of Power Dissipation in Switching Circuit
  • Considering Input Filter to Reduce Conducted Emissions by DCDC Converter
  • Considering Polarity of Power Inductor to Reduce Radiated Emission of DC-DC converter
  • Method for Monitoring Switching Waveform
  • Phase Compensation Design for Current Mode Buck Converter
  • Bootstrap Circuit in the Buck Converter
  • Method for Determining Constants of
  • Power Supply Sequence Circuit with General Purpose Power Supply IC
  • Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
  • PCB Layout Techniques of Buck Converter
  • Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
  • Usage of SPICE Macromodel for DC/DC
  • Snubber Circuit for Buck Converter IC
  • Efficiency of Buck Converter
  • Calculation of Power Loss (Synchronous)
  • Inductor Calculation for Buck converter IC
  • Considerations for Power Inductors Used for Buck Converters
  • Capacitor Calculation for Buck converter IC
  • The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit
  • Resistor Value Table to set Output Voltage of Buck Converter IC
  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • What Is Thermal Design
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Two-Resistor Model for Thermal Simulation
  • Notes for Temperature Measurement Using Thermocouples
  • Notes for Temperature Measurement Using Forward Voltage of PN Junction
  • Thermal Resistance
  • Precautions When Measuring the Rear of the Package with a Thermocouple

Tools

Simulations (Login Required)

ROHM Solution Simulator is a new web-based electronic circuit simulation tool that can carry out a variety of simulations, from initial development that involves component selection and individual device verification to the system-level verification stage. This makes it possible to quickly and easily implement complete circuit verification of ROHM power devices and ICs, in simulation circuits under close to actual conditions, significantly reducing application development efforts.
  • BD9E303EFJ / Frequency Domain

Models

  • BD9E303EFJ-LB(H2) SPICE Model

2D/3D/CAD

  • HTSOP-J8 Footprint / Symbol
  • HTSOP-J8 3D STEP Data

Packaging & Quality

Package Information

  • Package Information
  • Anti-Whisker formation

Manufacturing Data

  • Factory Information

Environmental Data

  • UL94 Flame Classifications of Mold Compound
  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)