BD9D300MUV
4.0 V to 17 V Input, 3 A Integrated MOSFET Single Synchronous Buck DC/DC Converter

BD9D300MUV is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. This integrated circuit (IC) is capable of providing current up to 3 A. It operates high oscillating frequency with low inductance. It has original on-time control system which can operate low power consumption in light load condition. This IC is ideal for reducing standby power consumption of equipment.

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Product Detail

 
Part Number | BD9D300MUV-E2
Status | Recommended
Package | VQFN016V3030
Unit Quantity | 3000
Minimum Package Quantity | 3000
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Standard

ch

1

Integrated FET / Controller

Integrated FET

Topology

Buck

Synchronous / Nonsynchronous

Synchronous

Vin1(Min.)[V]

4.0

Vin1(Max.)[V]

17.0

Vout1(Min.)[V]

0.9

Vout1(Max.)[V]

5.25

Iout1(Max.)[A]

3.0

SW frequency(Max.)[MHz]

1.25

Light Load mode

Yes

EN

Yes

PGOOD

Yes

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Features:

  • Single Synchronous Buck DC/DC Converter
  • On-time Control
  • Light Load Mode Control
  • Over Current Protection (OCP)
  • Short Circuit Protection (SCP)
  • Thermal Shutdown Protection (TSD)
  • Under Voltage Lockout Protection (UVLO)
  • Adjustable Soft Start
  • Power Good Output
  • Over Voltage Protection (OVP)
  • VQFN016V3030 Package Backside Heat Dissipation

Evaluation
Board

 
    • Evaluation Board
    • BD9D300MUV-EVK-001

    • BD9D300MUV-EVK-001 Evaluation board delivers an output 5.0 volts from an input 7.4 to 15 volts using BD9D300MUV, a synchronous rectification step-down DC/DC converter integrated circuit. It has original on-time control system which can operate low power consumption in light load condition.

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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 BD9D300MUV-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
  • 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
  • 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

  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • 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

2D/3D/CAD

  • VQFN016V3030 Footprint / Symbol
  • VQFN016V3030 3D STEP Data

Packaging & Quality

Manufacturing Data

  • Factory Information

Environmental Data

  • REACH SVHC Non-use Declaration