BD9G102G-LB
6V to 42V, 0.5A 1ch Simple Buck Converter Integrated FET

This is the product guarantees long time support in Industrial market. The BD9G102G-LB is a 42V, 0.5A non-synchronous buck converter with integrated internal high-side 42V Power MOSFET. Operating frequency is 1.0MHz fixed by inner circuit. The components of phase compensation are built in. Additional protection features are included such as Over Current Protection, Thermal Shutdown and Under Voltage Lockout.

Product Detail

 
Part Number | BD9G102G-LBTR
Status | Recommended
Package | SSOP6
Unit Quantity | 3000
Minimum Package Quantity | 3000
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Industrial

ch

1

Integrated FET / Controller

Integrated FET

Topology

Buck

Synchronous / Nonsynchronous

Non-synchronous

Vin1(Min.)[V]

6.0

Vin1(Max.)[V]

42.0

Vout1(Min.)[V]

0.75

Vout1(Max.)[V]

33.6

Iout1(Max.)[A]

0.5

SW frequency(Max.)[MHz]

1.0

Light Load mode

No

EN

Yes

PGOOD

No

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Features:

  • Long Time Support Product for Industrial Applications.
  • Wide Operating Input Range 6V to 42V
  • 45V/800mΩ Internal Power MOSFET
  • 1.0MHz Fixed Operating Frequency
  • Feedback Pin Voltage 0.75V ± 2.0%
  • Accurate EN Threshold 1.8V ± 0.1V
  • Current Mode
  • Internal Compensation
  • Cycle-by-Cycle Over Current Protection(OCP)
  • Under Voltage Locked Out(UVLO), Over Voltage Protection(OVP), Thermal Shut Down(TSD)
  • 0μA Low Shutdown Supply Current

Evaluation
Board

 
    • Evaluation Board
    • BD9G102G-EVK-001
    • This EVK has been developed for ROHM’s non-synchronous buck DC/DC converter customers evaluating BD9G102G-LB. While the BD9G102G-LB accepts a power supply input range of 6V to 42V, and generates output voltages from 0.75V to VCC×0.8, this EVK is setup for the input voltage range of 8V to 42V and a fixed output of 5V can be produced. The IC has internal 800mΩ N-channel MOSFET and the operating frequency is fixed 1. 0MHz.

  • User's Guide Purchase Inquiry

Design Resources

 

Documents

White Paper

  • Cutting-Edge Web Simulation Tool “ROHM Solution Simulator” Capable of Complete Circuit Verification of Power Devices and Driver ICs

User's Guide

  • User's Guide for BD9G102G-EVK-001 Evaluation Board

Technical Articles

Schematic Design & Verification

  • 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
  • PCB Layout Techniques of Buck Converter
  • Phase Compensation Design for Current Mode 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
  • Diode Selection Method for Asynchronous 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

  • Notes for Temperature Measurement Using Thermocouples
  • Two-Resistor Model for Thermal Simulation
  • 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)

  • Method for Exporting Circuit Data (ROHM Solution Simulator)

2D/3D/CAD

  • SSOP6 Footprint / Symbol

Packaging & Quality

Manufacturing Data

  • Factory Information

Environmental Data

  • REACH SVHC Non-use Declaration