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BD9P255EFV-CE2

Integrated Circuits (ICs)

BD9P255EFV-CE2

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Rohm Semiconductor

NANO PULSE CONTROL™, 3.5V TO 40V INPUT, 2A SINGLE 2.2MHZ BUCK DC/DC CONVERTER FOR AUTOMOTIVE

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Search across all available documentation for this part.

DocumentsTechnical Data Sheet EN PCB Layout Thermal Design Guide +51

BD9P255EFV-CE2

Integrated Circuits (ICs)

BD9P255EFV-CE2

Active

Rohm Semiconductor

NANO PULSE CONTROL™, 3.5V TO 40V INPUT, 2A SINGLE 2.2MHZ BUCK DC/DC CONVERTER FOR AUTOMOTIVE

Deep-Dive with AI

DocumentsTechnical Data Sheet EN PCB Layout Thermal Design Guide +51

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	BD9P255EFV-CE2

Current - Output	2 A
Frequency - Switching	2.2 MHz
Function	Step-Down
Grade	Automotive
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Package / Case	0.173 "
Package / Case	4.4 mm
Package / Case	20-VSSOP (Exposed Pad)
Qualification	AEC-Q100
Supplier Device Package	20-HTSSOP-B
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Min) [Min]	3.5 V
Voltage - Output (Min/Fixed)	5 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	3151	$ 3.35
Newark	Each (Supplied on Cut Tape)	1	$ 4.51
		10	$ 3.15
		25	$ 2.74
		50	$ 2.49
		100	$ 2.24
		250	$ 1.99
		500	$ 1.83
		1000	$ 1.71

Description

General part information

BD9P255EFV-C Series

BD9P2x5EFV-C Series are current mode synchronous buck DC/DC converter integrating POWER MOSFETs.

Documents

Technical documentation and resources

Technical Data Sheet EN

PCB Layout Thermal Design Guide

How to Use the Two-Resistor Model

Method for Calculating Junction Temperature from Transient Thermal Resistance Data

PCB Layout Techniques of Buck Converter

Schematic Design & Verification

Capacitor Calculation for Buck converter IC

Schematic Design & Verification

Precautions When Measuring the Rear of the Package with a Thermocouple

BD9P2x5EFV-C Series Two-Resistor Thermal Model Report

The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit

Schematic Design & Verification

BD9P255EFV-C Data Sheet

Calculation of Power Loss (Synchronous)

Schematic Design & Verification

Overview of ROHM's Simulation Models(for ICs and Discrete Semiconductors)

Technical Article

Considering Input Filter to Reduce Conducted Emissions by DCDC Converter

Schematic Design & Verification

Step-down DC-DC converter PCB layout EMC Design guide

Schematic Design & Verification

Types of Capacitors Used for Output Smoothing of Switching Regulators and their Precautions

Schematic Design & Verification

Snubber Circuit for Buck Converter IC

Schematic Design & Verification

Judgment Criteria of Thermal Evaluation

Inductor Calculation for Buck converter IC

Schematic Design & Verification

Considering Polarity of Power Inductor to Reduce Radiated Emission of DC-DC converter

Schematic Design & Verification

Simulation Guide for BD9P255EFV-C / Line Response (ROHM Solution Simulator)

Two-Resistor Model for Thermal Simulation

Design Guide and Example of Stencil for Exposed Pad

Calculation of Power Dissipation in Switching Circuit

Schematic Design & Verification

Thermal Resistance

Three Steps for Successful Design of DC-DC Converters

Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)

Schematic Design & Verification

Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter

Schematic Design & Verification

Five Steps for Successful Thermal Design of IC

What Is Thermal Design

Heat Dissipation Effect of Thermal Via in Exposed Pad Type Package

Evaluation Board User's Guide for BD9P2x5EFV-C series

Power Supply Sequence Circuit with General Purpose Power Supply IC

Schematic Design & Verification

θ<sub>JC</sub> and Ψ<sub>JT</sub>

Phase Compensation Design for Current Mode Buck Converter

Schematic Design & Verification

Bootstrap Circuit in the Buck Converter

Schematic Design & Verification

Resistor Value Table to set Output Voltage of Buck Converter IC

Schematic Design & Verification

Factory Information

Manufacturing Data

For Automotive ADAS/Infotainment application, CISPR25 Class5 compliant 8 rails power tree Reference Design with power rail monitoring for supporting functional safety

Method for Determining Constants of Peripheral Parts of Buck DC/DC Converter

Schematic Design & Verification

PCB Layout Essential Check sheet for Switching Regulator

Schematic Design & Verification

Solder Joint Rate and Thermal Resistance of Exposed Pad

Considerations for Power Inductors Used for Buck Converters

Schematic Design & Verification

Simulation Guide for BD9P255EFV-C / Load Response (ROHM Solution Simulator)

How to Use the Thermal Resistance and Thermal Characteristics Parameters

HTSSOP-B20 Package Information

Package Information

Impedance Characteristics of Bypass Capacitor

Schematic Design & Verification

Simulation Guide for BD9P255EFV-C / Frequency Response (ROHM Solution Simulator)

Diode Selection Method for Asynchronous Converter

Schematic Design & Verification

Precautions for PCB Layout Regarding Common Mode Filters

Technical Article

Basics of Thermal Resistance and Heat Dissipation

Efficiency of Buck Converter

Schematic Design & Verification

θ<sub>JA</sub> and Ψ<sub>JT</sub>

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

BD9P255EFV-C Series

Nano Pulse Control™, 3.5V to 40V Input, 2A Single 2.2MHz Buck DC/DC Converter For Automotive

Part	Qualification	Voltage - Input (Min) [Min]	Voltage - Output (Min/Fixed)	Grade	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Function	Supplier Device Package	Current - Output	Synchronous Rectifier	Number of Outputs	Frequency - Switching	Output Configuration	Topology	Package / Case	Package / Case	Package / Case
Rohm Semiconductor BD9P255EFV-CE2	AEC-Q100	3.5 V	5 V	Automotive	Surface Mount	125 °C	-40 °C	Step-Down	20-HTSSOP-B	2 A		1	2.2 MHz	Positive	Buck	0.173 "	4.4 mm	20-VSSOP (Exposed Pad)