Zenode.ai Logo
Beta
16-VFQFN
Integrated Circuits (ICs)

BD9A400MUV-E2

Active
Rohm Semiconductor

DC-DC SWITCHING BUCK STEP DOWN REGULATOR, ADJUSTABLE, 2.7V-5.5VIN, 800MV-3.85VOUT, 4AOUT, VQFN-16 ROHS COMPLIANT: YES

Deep-Dive with AI

Search across all available documentation for this part.

16-VFQFN
Integrated Circuits (ICs)

BD9A400MUV-E2

Active
Rohm Semiconductor

DC-DC SWITCHING BUCK STEP DOWN REGULATOR, ADJUSTABLE, 2.7V-5.5VIN, 800MV-3.85VOUT, 4AOUT, VQFN-16 ROHS COMPLIANT: YES

Technical Specifications

Parameters and characteristics for this part

SpecificationBD9A400MUV-E2
Current - Output4 A
Frequency - Switching1 MHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / Case16-VFQFN Exposed Pad
Supplier Device PackageVQFN016V3030
Synchronous RectifierTrue
TopologyBuck
Voltage - Input (Max) [Max]5.5 V
Voltage - Input (Min) [Min]2.7 V
Voltage - Output (Max) [Max]3.85 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$ 1.61
10$ 1.02
25$ 0.86
100$ 0.69
250$ 0.60
500$ 0.55
1000$ 0.50
Digi-Reel® 1$ 1.61
10$ 1.02
25$ 0.86
100$ 0.69
250$ 0.60
500$ 0.55
1000$ 0.50
Tape & Reel (TR) 3000$ 0.45
6000$ 0.42
9000$ 0.41
15000$ 0.39
21000$ 0.38
NewarkEach 1$ 1.02
10$ 0.87
100$ 0.59
500$ 0.54
1000$ 0.47
2500$ 0.43
10000$ 0.39

Description

General part information

BD9A400MUV Series

BD9A400MUV is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. It is capable of providing current up to 4A.The SLLM™ control provides excellent efficiency characteristics in light-load conditions which make the product ideal for equipment and devices that demand minimal standby power consumption. The oscillating frequency is high at 1MHz using a small value of inductance. It is a current mode control DC/DC converter and features high-speed transient response. Phase compensation can also be set easily.

Documents

Technical documentation and resources

BD9A400MUV-E2 Flammability

Related Document

VQFN016V3030 Taping Spec

Datasheet

PCB Layout Thermal Design Guide

Thermal Design

Three Steps for Successful Design of DC-DC Converters

White Paper

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

Schematic Design & Verification

Buck DC/DC Converter Recommended Inductor List

Schematic Design & Verification

Snubber Circuit for Buck Converter IC

Schematic Design & Verification

PCB Layout for BD9A Series

Schematic Design & Verification

Design Guide and Example of Stencil for Exposed Pad

Thermal Design

Factory Information

Manufacturing Data

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

Schematic Design & Verification

Two-Resistor Model for Thermal Simulation

Thermal Design

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

Schematic Design & Verification

Phase Compensation Design for Current Mode Buck Converter

Schematic Design & Verification

PCB Layout Essential Check sheet for Switching Regulator

Schematic Design & Verification

Considering Input Filter to Reduce Conducted Emissions by DCDC Converter

Schematic Design & Verification

Precautions for PCB Layout Regarding Common Mode Filters

Technical Article

Solder Joint Rate and Thermal Resistance of Exposed Pad

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

Thermal Resistance

Thermal Design

Compliance with the ELV directive

Environmental Data

PCB Layout Techniques of Buck Converter

Schematic Design & Verification

Judgment Criteria of Thermal Evaluation

Thermal Design

Power Supply Sequence Circuit with General Purpose Power Supply IC

Schematic Design & Verification

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

Schematic Design & Verification

Bootstrap Circuit in the Buck Converter

Schematic Design & Verification

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

Technical Article

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

BD9A400MUV Reference Circuits and Bomlist

Reference Design

Anti-Whisker formation

Package Information

Heat Dissipation Effect of Thermal Via in Exposed Pad Type Package

Thermal Design

Five Steps for Successful Thermal Design of IC

White Paper

Calculation of Power Loss (Synchronous)

Schematic Design & Verification

Impedance Characteristics of Bypass Capacitor

Schematic Design & Verification

How to Use the Thermal Resistance and Thermal Characteristics Parameters

Thermal Design

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

Schematic Design & Verification

What Is Thermal Design

Thermal Design

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

Schematic Design & Verification

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

White Paper

θ<sub>JA</sub> and Ψ<sub>JT</sub>

Thermal Design

Capacitor Calculation for Buck converter IC

Schematic Design & Verification

Efficiency of Buck Converter

Schematic Design & Verification

Product Change Notice EN

Datasheet