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ROHM Semiconductor-BD9P135MUF-CE2 DC to DC Converter and Switching Regulator Chip Conv DC-DC 3.5V to 40V Synchronous Step Down Single-Out 3.3V 1A Automotive AEC-Q100 20-Pin VQFN EP T/R
Integrated Circuits (ICs)

BD9P155MUF-CE2

Active
Rohm Semiconductor

CONV DC-DC 3.5V TO 40V SYNCHRONOUS STEP DOWN SINGLE-OUT 5V 1A AUTOMOTIVE AEC-Q100 20-PIN VQFN EP T/R

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Search across all available documentation for this part.

DocumentsTechnical Data Sheet ENInductor Calculation for Buck converter IC+51
ROHM Semiconductor-BD9P135MUF-CE2 DC to DC Converter and Switching Regulator Chip Conv DC-DC 3.5V to 40V Synchronous Step Down Single-Out 3.3V 1A Automotive AEC-Q100 20-Pin VQFN EP T/R
Integrated Circuits (ICs)

BD9P155MUF-CE2

Active
Rohm Semiconductor

CONV DC-DC 3.5V TO 40V SYNCHRONOUS STEP DOWN SINGLE-OUT 5V 1A AUTOMOTIVE AEC-Q100 20-PIN VQFN EP T/R

Deep-Dive with AI

DocumentsTechnical Data Sheet ENInductor Calculation for Buck converter IC+51

Technical Specifications

Parameters and characteristics for this part

SpecificationBD9P155MUF-CE2
Current - Output1 A
Frequency - Switching2.2 MHz
FunctionStep-Down
GradeAutomotive
Mounting TypeWettable Flank, Surface Mount
Number of Outputs1
Operating Temperature [Max]125 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Package / Case20-VFQFN Exposed Pad
QualificationAEC-Q100
Supplier Device PackageVQFN20FV4040
Synchronous RectifierTrue
TopologyBuck
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

DistributorPackageQuantity$
DigikeyN/A 2472$ 2.97
NewarkEach (Supplied on Cut Tape) 1$ 3.90
10$ 2.87
25$ 2.46
50$ 2.24
100$ 2.00
250$ 1.77
500$ 1.63
1000$ 1.52

Description

General part information

BD9P155MUF-C Series

BD9P1x5MUF-C Series are current mode synchronous buck DC/DC converter integrating POWER MOSFETs.

Documents

Technical documentation and resources

Technical Data Sheet EN

Datasheet

Inductor Calculation for Buck converter IC

Schematic Design & Verification

Efficiency of Buck Converter

Schematic Design & Verification

Two-Resistor Model for Thermal Simulation

Thermal Design

θ<sub>JA</sub> and Ψ<sub>JT</sub>

Thermal Design

How to Use the Two-Resistor Model

Thermal Design

Evaluation Board User's Guide for BD9P1x5MUF-C series

User's Guide

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

Schematic Design & Verification

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

Schematic Design & Verification

Simulation Guide for BD9P155MUF-C / Load Response (ROHM Solution Simulator)

Simulations

Phase Compensation Design for Current Mode Buck Converter

Schematic Design & Verification

Factory Information

Manufacturing Data

Bootstrap Circuit in the Buck Converter

Schematic Design & Verification

Calculation of Power Dissipation in Switching Circuit

Schematic Design & Verification

PCB Layout Thermal Design Guide

Thermal Design

PCB Layout Techniques of Buck Converter

Schematic Design & Verification

How to Use the Thermal Resistance and Thermal Characteristics Parameters

Thermal Design

Judgment Criteria of Thermal Evaluation

Thermal Design

Simulation Guide for BD9P155MUF-C / Frequency Response (ROHM Solution Simulator)

Simulations

Resistor Value Table to set Output Voltage of Buck Converter IC

Schematic Design & Verification

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

Schematic Design & Verification

Capacitor Calculation for Buck converter IC

Schematic Design & Verification

Diode Selection Method for Asynchronous Converter

Schematic Design & Verification

θ<sub>JC</sub> and Ψ<sub>JT</sub>

Thermal Design

Simulation Guide for BD9P155MUF-C / Line Response (ROHM Solution Simulator)

Simulations

Considering Input Filter to Reduce Conducted Emissions by DCDC Converter

Schematic Design & Verification

Five Steps for Successful Thermal Design of IC

White Paper

Three Steps for Successful Design of DC-DC Converters

White Paper

Solder Joint Rate and Thermal Resistance of Exposed Pad

Thermal Design

Impedance Characteristics of Bypass Capacitor

Schematic Design & Verification

PCB Layout Essential Check sheet for Switching Regulator

Schematic Design & Verification

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

White Paper

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

Schematic Design & Verification

Design Guide and Example of Stencil for Exposed Pad

Thermal Design

Power Supply Sequence Circuit with General Purpose Power Supply IC

Schematic Design & Verification

What Is Thermal Design

Thermal Design

VQFN20FV4040 Package Information

Package Information

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

Schematic Design & Verification

Precautions When Measuring the Rear of the Package with a Thermocouple

Thermal Design

Considerations for Power Inductors Used for Buck Converters

Schematic Design & Verification

Method for Calculating Junction Temperature from Transient Thermal Resistance Data

Thermal Design

Heat Dissipation Effect of Thermal Via in Exposed Pad Type Package

Thermal Design

Precautions for PCB Layout Regarding Common Mode Filters

Technical Article

BD9P155MUF-C Data Sheet

Data Sheet

Thermal Resistance

Thermal Design

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

White Paper

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

Schematic Design & Verification

Snubber Circuit for Buck Converter IC

Schematic Design & Verification

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

Technical Article

BD9P1x5MUF-C Series Two-Resistor Thermal Model Report

Models

Basics of Thermal Resistance and Heat Dissipation

Thermal Design

Calculation of Power Loss (Synchronous)

Schematic Design & Verification

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

Schematic Design & Verification