Specification	BD9611MUV-E2

Clock Sync	True
Control Features	Enable, Soft Start, Frequency Control, Current Limit
Frequency - Switching [Max]	500 kHz
Frequency - Switching [Min]	50 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	105 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	20-VFQFN Exposed Pad
Supplier Device Package	VQFN020V4040
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	56 V
Voltage - Supply (Vcc/Vdd) [Min]	10 V

BD9611MUV Series

60V Synchronous Step-down Switching Regulator (Controller Type)

Part	Board Type	Main Purpose	Voltage - Output	Regulator Topology	Outputs and Type	Outputs and Type	Current - Output	Supplied Contents	Frequency - Switching	Utilized IC / Part	Voltage - Input [Min]	Voltage - Input [Max]	Clock Sync	Supplier Device Package	Number of Outputs	Topology	Output Type	Frequency - Switching [Max]	Frequency - Switching [Min]	Output Phases	Control Features	Synchronous Rectifier	Function	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Mounting Type	Output Configuration
Rohm Semiconductor BD9611MUV-EVK-001	Fully Populated	DC/DC Step Down	12 V	Buck	Non-Isolated	1	10 A	Board(s)	250 kHz	BD9611	15 V	36 V
Rohm Semiconductor BD9611MUV-E2														VQFN020V4040	1	Buck	Transistor Driver	500 kHz	50 kHz	1	Current Limit Enable Frequency Control Soft Start		Step-Down	105 °C	-40 °C	20-VFQFN Exposed Pad	10 V	56 V	Surface Mount	Positive

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.34
		10	$ 2.17
		100	$ 1.51
		500	$ 1.23
		1000	$ 1.14
	Digi-Reel®	1	$ 3.34
		10	$ 2.17
		100	$ 1.51
		500	$ 1.23
		1000	$ 1.14
	Tape & Reel (TR)	2500	$ 1.05
Newark	Each (Supplied on Cut Tape)	1	$ 2.69
		10	$ 2.51
		25	$ 2.36
		50	$ 2.22
		100	$ 2.07
		250	$ 1.91
		500	$ 1.85
		1000	$ 1.79

Description

General part information

BD9611MUV Series

The BD9611MUV is a high-resistance, wide voltage input (10V to 56V), synchronous step-down switching regulator. BD9611MUV offers design flexibility through user-programmable functions such as soft-start, operating frequency, high-side current limit, and loop compensation. BD9611MUV uses voltage pulse width modulation, and drives 2 external N-channel FETs. The Under-Voltage Locked Output (EXUVLO) protection connected to its CTL terminal has high accuracy reference voltage. Its threshold voltage can be adjusted by the resistance ratio between VCC and GND as seen by pin CTL. BD9611MUV is safe for pre-biased outputs. It does not turn on the synchronous rectifier until the internal high-side FET has already started switching.

Documents

Technical documentation and resources

BD9611MUV-E2 Flammability

Technical Data Sheet EN

BD9611MUV-E2

Deep-Dive with AI

BD9611MUV-E2

Deep-Dive with AI

Technical Specifications

BD9611MUV Series

Pricing

Description

BD9611MUV Series

Documents

BD9611MUV-E2 Flammability

Technical Data Sheet EN

Judgment Criteria of Thermal Evaluation

Phase Compensation Design for Current Mode Buck Converter

Thermal Resistance

Five Steps for Successful Thermal Design of IC

Precautions for PCB Layout Regarding Common Mode Filters

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

Considering Input Filter to Reduce Conducted Emissions by DCDC Converter

Method for Calculating Junction Temperature from Transient Thermal Resistance Data

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

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

Two-Resistor Model for Thermal Simulation

How to Use the Thermal Resistance and Thermal Characteristics Parameters

Design Guide and Example of Stencil for Exposed Pad

Considerations for Power Inductors Used for Buck Converters

Three Steps for Successful Design of DC-DC Converters

Simulation Guide for BD9611MUV / Frequency Response (ROHM Solution Simulator)

θ<sub>JA</sub> and Ψ<sub>JT</sub>

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

Resistor Value Table to set Output Voltage of Buck Converter IC

SPICE Modeling Report - BD9611MUV : 60V Synchronous Step-down Switching Regulator (Controller Type)

PCB Layout Essential Check sheet for Switching Regulator

Solder Joint Rate and Thermal Resistance of Exposed Pad

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

Snubber Circuit for Buck Converter IC

Heat Dissipation Effect of Thermal Via in Exposed Pad Type Package

Calculation of Power Loss (Synchronous)

What Is Thermal Design

Power Supply Sequence Circuit with General Purpose Power Supply IC

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

PCB Layout Thermal Design Guide

PCB Layout Techniques of Buck Converter

Efficiency of Buck Converter

Anti-Whisker formation

BD9611MUV Reference Circuits and Bomlist

Compliance with the ELV directive

Impedance Characteristics of Bypass Capacitor

Evaluation Board User's Guide

Factory Information

VQFN020V4040 Package Information

Capacitor Calculation for Buck converter IC

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

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

1ch Buck Switching Regulator BD9611MUV Phase Compensation Setting

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

BD9611MUV Series