BD9D320EFJ
4,5–18 V 3,0 A 1-Kanal Synchron-Buck-Wandler

BD9D320EFJ ist ein Synchron-Abwärts-Schaltregler mit integrierten MOSFETs mit geringem On-Widerstand. Er kann Stromstärken bis zu 3 A bereitstellen. Eine externe Phasenkompensationsschaltung ist nicht nötig, da es sich um einen konstanten On-Time-DC/DC-Wandler mit schneller Antwortzeit handelt.

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Produktdetails

 
Teilenummer | BD9D320EFJ-E2
Status | Empfohlen
Gehäuse | HTSOP-J8
Einheitenmenge | 2500
Minimale Gehäusemenge | 2500
Gehäusetyp | Taping
RoHS | Ja

Spezifikationen:

Grade

Standard

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]

0.765

Vout1(Max.)[V]

7.0

Iout1(Max.)[A]

3.0

SW frequency(Max.)[MHz]

0.7

Light Load mode

No

EN

Yes

PGOOD

No

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Eigenschaften:

 Synchronous Single DC/DC Converter
 Constant On-time Control
 Over Current Protection
 Short Circuit Protection
 Thermal Shutdown Protection
 Under Voltage Lockout Protection
 Adjustable Soft Start
 HTSOP-J8 Package (Backside Heat Dissipation)

Evaluation
Board

 
    • Evaluation Board
    • BD9D320EFJ-EVK-001
    • BD9D320EFJ-EVK-001 Evaluation board delivers an output 3.3 volts from an input 5.08 to 18 volts using BD9D320EFJ, a synchronous rectification step-down DC/DC converter integrated circuit, with output current rating of maximum 3A. It offers high efficiency in all load ranges by equipping the efficiency improvement function in light-load.

  • User's Guide Design Data Buy

Ressourcen entwerfen

 

Unterlagen

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
  • Evaluation Board Data

Application Note

  • PCB Layout for BD9D320EFJ

Reference Design

  • BD9D320EFJ Reference Circuits and Bomlist

Technische Artikel

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

  • 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

Design Tools

2D/3D/CAD

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

Packaging & Qualität

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)