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16-VFQFN
Integrated Circuits (ICs)

BD9S300MUF-CE2

Active
Rohm Semiconductor

2.7V TO 5.5V INPUT, 3A INTEGRATED MOSFET SINGLE SYNCHRONOUS BUCK DC/DC CONVERTER FOR AUTOMOTIVE

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsMethod for Determining Constants of Peripheral Parts of Buck DC/DC ConverterStep-down DC-DC converter PCB layout EMC Design guide+46
16-VFQFN
Integrated Circuits (ICs)

BD9S300MUF-CE2

Active
Rohm Semiconductor

2.7V TO 5.5V INPUT, 3A INTEGRATED MOSFET SINGLE SYNCHRONOUS BUCK DC/DC CONVERTER FOR AUTOMOTIVE

Deep-Dive with AI

DocumentsMethod for Determining Constants of Peripheral Parts of Buck DC/DC ConverterStep-down DC-DC converter PCB layout EMC Design guide+46

Technical Specifications

Parameters and characteristics for this part

SpecificationBD9S300MUF-CE2
Current - Output3 A
Frequency - Switching2.2 MHz
FunctionStep-Down
GradeAutomotive
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]125 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / Case16-VFQFN Exposed Pad
QualificationAEC-Q100
Supplier Device PackageVQFN016V3030
Synchronous RectifierTrue
TopologyBuck
Voltage - Input (Max) [Max]5.5 V
Voltage - Input (Min) [Min]2.7 V
Voltage - Output (Max) [Max]4.4 V
Voltage - Output (Min/Fixed)0.8 V

Pricing

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

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 2.68
10$ 1.76
25$ 1.52
100$ 1.25
250$ 1.20
Digi-Reel® 1$ 2.68
10$ 1.76
25$ 1.52
100$ 1.25
250$ 1.20
Tape & Reel (TR) 3000$ 1.20
NewarkEach (Supplied on Cut Tape) 1$ 3.31
10$ 2.34
25$ 2.05
50$ 1.89
100$ 1.74
300$ 1.54
500$ 1.41
1000$ 1.30

Description

General part information

BD9S300MUF-C Series

BD9S300MUF-C is a synchronous buck DC/DC Converter with built-in low On Resistance power MOSFETs. It is capable of providing current up to 3A. The SLLM™ control provides excellent efficiency characteristics in light-load conditions which make the product ideal for reducing standby power consumption of equipment. Small inductor is applicable due to high switching frequency of 2.2MHz. It is a current mode control DC/DC Converter and features high-speed transient response. Phase compensation can also be set easily. It can also be synchronized to external pulse.8-channel power tree Reference DesignFor automotive ADAS and Info-Display

Documents

Technical documentation and resources

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

Schematic Design & Verification

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

Schematic Design & Verification

PCB Layout Thermal Design Guide

Thermal Design

Bootstrap Circuit in the Buck Converter

Schematic Design & Verification

Simulation Guide for REFRPT001 for 3.3V power tree sub-circuit / Load Response (ROHM Solution Simulator)

Simulations

Considering Input Filter to Reduce Conducted Emissions by DCDC Converter

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

User's Guide for REFRPT001-EVK-001

User's Guide

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

White Paper

Design Guide and Example of Stencil for Exposed Pad

Thermal Design

Application Note for REFRPT001-EVK-001

Reference Design

How to Use the Thermal Resistance and Thermal Characteristics Parameters

Thermal Design

Evaluation Board User's Guide for BD9S300MUF-TSB-001

User's Guide

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

Technical Article

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

Schematic Design & Verification

Factory Information

Manufacturing Data

Power Supply Sequence Circuit with General Purpose Power Supply IC

Schematic Design & Verification

Judgment Criteria of Thermal Evaluation

Thermal Design

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

Schematic Design & Verification

Efficiency of Buck Converter

Schematic Design & Verification

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

Schematic Design & Verification

Precautions for PCB Layout Regarding Common Mode Filters

Technical Article

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

Schematic Design & Verification

Considerations for Power Inductors Used for Buck Converters

Schematic Design & Verification

What Is Thermal Design

Thermal Design

Phase Compensation Design for Current Mode Buck Converter

Schematic Design & Verification

CISPR25 Class5 Compliant, 8 rails power tree reference design for automotive ADAS and Info-Display

Reference Design

PCB Layout Essential Check sheet for Switching Regulator

Schematic Design & Verification

Resistor Value Table to set Output Voltage of Buck Converter IC

Schematic Design & Verification

PCB Layout Techniques of Buck Converter

Schematic Design & Verification

REFRPT001-EVK-001 EMC Test Report

Reference Design

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

Schematic Design & Verification

Thermal Resistance

Thermal Design

Five Steps for Successful Thermal Design of IC

White Paper

Method for Calculating Junction Temperature from Transient Thermal Resistance Data

Thermal Design

Capacitor Calculation for Buck converter IC

Schematic Design & Verification

BD9S300MUF-C Two-Resistor Thermal Model Report

Models

θ<sub>JA</sub> and Ψ<sub>JT</sub>

Thermal Design

Calculation of Power Loss (Synchronous)

Schematic Design & Verification

Two-Resistor Model for Thermal Simulation

Thermal Design

Solder Joint Rate and Thermal Resistance of Exposed Pad

Thermal Design

Three Steps for Successful Design of DC-DC Converters

White Paper

Impedance Characteristics of Bypass Capacitor

Schematic Design & Verification

BD9S300MUF-C Data Sheet

Data Sheet

Snubber Circuit for Buck Converter IC

Schematic Design & Verification

Heat Dissipation Effect of Thermal Via in Exposed Pad Type Package

Thermal Design

AEC-Q101 Automotive Requirements

Related Document

Technical Data Sheet EN

Datasheet