BD9C301FJ-LB(H2)
4.5V~18V 輸入, 3A 同步整流1ch 降壓DC/D​​C 轉換器

本產品是針對工業裝置市場的產品,保證可長期穩定供貨。是最適合這些用途的產品。
BD9C301FJ-LB是在1個晶片中內建低導通電阻的功率MOSFET的同步整流降壓DC/D​​C轉換器。
輸入電壓範圍大,最大可輸出3A的電流。可由較少的外接部件構成,從而降低成本。是電流模式控制DC/DC轉換器,具有高速暫態響應性能,可輕鬆設定相位補償。

Product Detail

 
料號 | BD9C301FJ-LBGH2
狀態 | 可購買
封裝 | SOP-J8
單位數量 | 250
最小包裝數量 | 250
包裝形式 | Taping
RoHS | Yes

規格:

Grade

Industrial

ch

1

Integrated FET / Controller

Integrated FET

Topology

Buck

Synchronous / Nonsynchronous

Synchronous

Vin1(Min.)[V]

4.5

Vin1(Max.)[V]

18.0

Vout1(Min.)[V]

0.8

Vout1(Max.)[V]

12.6

Iout1(Max.)[A]

3.0

SW frequency(Max.)[MHz]

0.55

Light Load mode

No

EN

Yes

PGOOD

No

Operating Temperature (Min.)[°C]

Tj=-40

Operating Temperature (Max.)[°C]

Tj=125

Package Size [mm]

4.9x6 (t=1.65)

功能:

· Long time support a product for Industrial applications.
· Synchronous 1 ch DC/DC converter
· Over Current protection
· Thermal Shutdown protection
· Under Voltage lockout protection
· Short Circuit Protection
· Fixed soft start function 1msec

Evaluation
Board

 
    • Evaluation Board
    • BD9C301FJ-EVK-001
    • BD9C301FJ-EVK-001 Evaluation board delivers an output 3.3 volts from an input 4.5 to 18 volts using BD9C301FJ, a synchronous rectification stepdown 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

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 BD9C301FJ-LB(H2)

Reference Design

  • BD9C301FJ-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
  • Basics of Thermal Resistance and Heat Dissipation
  • 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

Models

  • BD9C301FJ-LB(H2) SPICE Model
  • Unencrypted SPICE Model (Inquiry Form)

2D/3D/CAD

  • SOP-J8 Footprint / Symbol
  • SOP-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)