BD9F800MUX-Z
4.5V~28V輸入 8.0A MOSFET內建 1ch同步整流降壓 DC/DC轉換器

BD9F800MUX是內建低導通電阻的功率MOSFET的同步整流降壓DC/DC轉換器。最大可輸出8A的電流。還是恒定時間控制DC/DC轉換器,具有高速負載回應性能,無需外接的相位補償電路。

Power Supply Reference Board
For Xilinx’s FPGA Spartan-7

Data Sheet 購買 *
* 本產品是標準級的產品。
本產品不建議使用的車載設備。

Product Detail

 
料號 | BD9F800MUX-ZE2
狀態 | 推薦品
封裝 | VQFN11X3535A
單位數量 | 2500
最小包裝數量 | 2500
包裝形式 | Taping
RoHS | Yes

規格:

Grade

Standard

ch

1

Integrated FET / Controller

Integrated FET

Topology

Buck

Synchronous / Nonsynchronous

Synchronous

Vin1(Min.)[V]

4.5

Vin1(Max.)[V]

28.0

Vout1(Min.)[V]

0.765

Vout1(Max.)[V]

13.5

Iout1(Max.)[A]

8.0

SW frequency(Max.)[MHz]

0.3

Light Load mode

No

EN

Yes

PGOOD

Yes

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Package Size [mm]

3.5x3.5 (t=0.6)

功能:

  • Key Specifications
    • · Input Voltage Range: 4.5V to 28 V
    • · Output Voltage Setting Range: 0.765V to 13.5V
    • · Output Current: 8A (Max)
    • · Switching Frequency: 300kHz or 600kHz (Typ)
    • · High Side MOSFET On-Resistance: 23 mΩ (Typ)
    • · Low Side MOSFET On-Resistance: 11 mΩ (Typ)
    • · Shutdown Current: 2μA (Typ)
  • Synchronous Single DC/DC Converter
  • Constant On-time Control
  • Over Current Protection
  • Short Circuit Protection
  • Thermal Shutdown Protection
  • Under Voltage Lockout Protection
  • Power Good Output
  • VQFN11X3535A Package

Evaluation
Board

 
    • Evaluation Board
    • BD9F800MUX-EVK-001
    • BD9F800MUX-EVK-001 uses BD9F800MUX to output 1V from a 12V input voltage. The input voltage of the BD9F800MUX is from 4.5V to 28V and the output voltage is configurable from 0.765V to 13.5V with external resistors. The switching frequency can be selected as 300 kHz or 600 kHz. BD9F800MUX is a constant on-time controlled DC/DC converter with fast transient response and does not require external phase compensation .

  • User's Guide Purchase Inquiry
    • Reference Design
    • Spartan-7 Reference
    • Reference power supply optimized for Xilinx’s FPGA Spartan-7

  • Detail

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

  • Evaluation Board User's Guide for BD9F800MUX-EVK-001

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

  • What Is Thermal Design
  • Basics of Thermal Resistance and Heat Dissipation
  • 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

Calculation Tools

This Calculation Sheet supports the application circuit design of switching regulators. The sheet has formulas necessary for determining peripheral parts. You can easily determine the circuit parameters that meet the desired characteristics by setting the values according to the guidance.
  • Calculation-sheet for the circuit theoretical formula - BD9F800MUX-Z

Models

  • BD9F800MUX-Z Two-Resistor Thermal Model Report

2D/3D/CAD

  • VQFN11X3535A Footprint / Symbol

Packaging & Quality

Package Information

  • Package Information

Manufacturing Data

  • Factory Information

Environmental Data

  • REACH SVHC Non-use Declaration