BD9P105EFV-C (Neues Produkt)
Nano Pulse Control™ 3,5 V bis 40 V Eingang, 1 A 2,2 MHz Einkanal-Abwärts-DC/DC-Wandler für die Automobilindustrie

Die BD9P1x5EFV-C-C-Serie umfasst synchrone Current-Mode-Abwärts-DC/DC-Wandler, die Leistungs-MOSFETs integrieren.


Teilenummer | BD9P105EFV-CE2
Status | Empfohlen
Gehäuse | HTSSOP-B20
Einheitenmenge | 2500
Minimale Gehäusemenge | 2500
Gehäusetyp | Taping
RoHS | Ja

Funktionalen Sicherheit:

Kategorie : FS supportive
A product that has been developed for automotive use and is capable of supporting safety analysis with regard to the functional safety.




Common Standard

AEC-Q100 (Automotive Grade)



Integrated FET / Controller

Integrated FET



Synchronous / Nonsynchronous












SW frequency(Max.)[MHz]


Light Load mode






Operating Temperature (Min.)[°C]


Operating Temperature (Max.)[°C]



  • Nano Pulse Control™
  • AEC-Q100 Qualified (Grade 1)
  • Minimum ON Pulse 50 ns (Max)
  • Synchronous Buck DC/DC Converter Integrating POWER MOSFETs
  • Soft Start Function
  • Current Mode Control
  • Reset Function
  • Quiescent Current 10 µA (Typ) with 12 V Input to 5.0 V Output
  • Light Load Mode (LLM)
  • Forced Pulse Wide Modulation (PWM) Mode
  • Phase Compensation Included
  • Selectable Spread Spectrum Switching
  • External Synchronization Function
  • Selectable Over Current Protection (OCP)
  • Input Under Voltage Lockout (UVLO) Protection
  • Thermal Shut Down (TSD) Protection
  • Output Over Voltage Protection


    • Evaluation Board
    • BD9P1x5EFV-TSB-001
    • This Evaluation Board was developed for ROHM’s single 2.2MHz buck DC/DC converter BD9P1x5EFV-C. BD9P1x5EFV-C Series are current mode synchronous buck DC/DC converter integrating POWER MOSFETs. The BD9P1x5EFV-C series accepts a power supply input range of 3.5V to 40V and generates a maximum output current of 1A.

  • User's Guide Purchase Inquiry
    • Reference Design
    • REFRPT001-EVK-001
    • The REFRPT001-EVK-001 is a board included in power tree solution reference design named as REFRPT001 developed for infotainment devices such as vehicle clusters and center information displays, as well as for ADAS ECUs. The power system that can support functional safety is integrated on a single board, realizing an optimal configuration as a power tree.

  • User's Guide Detail

Ressourcen entwerfen



White Paper

  • Cutting-Edge Web Simulation Tool “ROHM Solution Simulator” Capable of Complete Circuit Verification of Power Devices and Driver ICs
  • For Automotive ADAS/Infotainment application, CISPR25 Class5 compliant 8 rails power tree Reference Design with power rail monitoring for supporting functional safety

User's Guide

  • User's Guide for REFRPT001-EVK-001
  • Evaluation Board User's Guide for BD9P1x5EFV-C series

Reference Design

  • Application Note for REFRPT001-EVK-001
  • REFRPT001-EVK-001 EMC Test Report

Technische Artikel

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

Design Tools

Simulations (Login Required)

ROHM Solution Simulator is a new web-based electronic circuit simulation tool that can carry out a variety of simulations, from initial development that involves component selection and individual device verification to the system-level verification stage. This makes it possible to quickly and easily implement complete circuit verification of ROHM power devices and ICs, in simulation circuits under close to actual conditions, significantly reducing application development efforts.
  • REFRPT001 / Load Response for 5.0V Power Tree Sub-circuit
  • BD9P105EFV-C / Frequency Response
  • BD9P105EFV-C / Load Response
  • BD9P105EFV-C / Line Response
  • Simulation Guide for REFRPT001 for 5.0V power tree sub-circuit / Load Response (ROHM Solution Simulator)
  • Simulation Guide for BD9P105EFV-C / Frequency Response (ROHM Solution Simulator)
  • Simulation Guide for BD9P105EFV-C / Line Response (ROHM Solution Simulator)
  • Simulation Guide for BD9P105EFV-C / Load Response (ROHM Solution Simulator)

Calculation Tools

  • Calculation-sheet for the circuit theoretical formula - BD9Pxx5EFV/MUF-C


  • BD9P1x5EFV-C Series Two-Resistor Thermal Model Report
  • BD9P105EFV-C SPICE Model


  • BD9P105EFV-C Footprint / Symbol
  • HTSSOP-B20 Footprint / Symbol
  • HTSSOP-B20 3D STEP Data

Packaging & Qualität

Manufacturing Data

  • Factory Information