Specification	BD9E101FJ-LBGH2

Current - Output	1 A
Frequency - Switching	570 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	0.154 in
Package / Case	8-SOIC
Package / Case	3.9 mm
Supplier Device Package	8-SOP-J
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	36 V
Voltage - Input (Min) [Min]	7 V
Voltage - Output (Max) [Max]	25.2 V
Voltage - Output (Min/Fixed)	1 V

BD9E101 Series

7.0V to 36V Input, 1.0A Integrated MOSFET Single Synchronous Buck DC/DC Converter

Part	Package / Case	Package / Case	Package / Case	Current - Output	Output Type	Voltage - Output (Max) [Max]	Topology	Voltage - Output (Min/Fixed)	Number of Outputs	Frequency - Switching	Voltage - Input (Min) [Min]	Output Configuration	Supplier Device Package	Voltage - Input (Max) [Max]	Mounting Type	Function	Operating Temperature [Min]	Operating Temperature [Max]	Supplied Contents	Outputs and Type	Outputs and Type	Board Type	Contents	Voltage - Output	Regulator Topology	Utilized IC / Part	Voltage - Input [Max]	Voltage - Input [Min]	Main Purpose
Rohm Semiconductor BD9E101FJ-LBGE2	0.154 in	8-SOIC	3.9 mm	1 A	Adjustable	25.2 V	Buck	1 V	1	570 kHz	7 V	Positive	8-SOP-J	36 V	Surface Mount	Step-Down	-40 °C	150 °C
Rohm Semiconductor BD9E101FJ-EVK-001				1 A						570 kHz									Board(s)	1	1 Non-Isolated Output Non-Isolated	Fully Populated	Board(s)	5 V	Buck	BD9E101	36 V	7.2 V	DC/DC Step Down
Rohm Semiconductor BD9E101FJ-LBGH2	0.154 in	8-SOIC	3.9 mm	1 A	Adjustable	25.2 V	Buck	1 V	1	570 kHz	7 V	Positive	8-SOP-J	36 V	Surface Mount	Step-Down	-40 °C	150 °C

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	$ 4.92
		10	$ 3.28
		25	$ 2.85
		100	$ 2.37
	Digi-Reel®	1	$ 4.92
		10	$ 3.28
		25	$ 2.85
		100	$ 2.37
	N/A	159	$ 3.44
	Tape & Reel (TR)	250	$ 2.14
		500	$ 2.00
		750	$ 1.93
		1250	$ 1.85
		1750	$ 1.80
		2500	$ 1.76

Description

General part information

BD9E101 Series

This product guarantees long life cycle in Industrial market. BD9E101FJ-LB is a synchronous buck switching regulator with built-in power MOSFETs. It is capable of an output current of up to 1.0A. 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

BD9E101FJ-LBGH2

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BD9E101FJ-LBGH2

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Technical Specifications

BD9E101 Series

Pricing

Description

BD9E101 Series

Documents

BD9E101FJ-LBGH2 Flammability

Inductor Calculation for Buck converter IC

Considerations for Power Inductors Used for Buck Converters

Precautions When Measuring the Rear of the Package with a Thermocouple

Buck DC/DC Converter Recommended Inductor List

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

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

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

Snubber Circuit for Buck Converter IC

Three Steps for Successful Design of DC-DC Converters

Industrial DC/DC Buck Converters BD9x Series

How to Use the Thermal Resistance and Thermal Characteristics Parameters

What Is Thermal Design

PCB Layout for BD9E100FJ-LB

Two-Resistor Model for Thermal Simulation

Method for Calculating Junction Temperature from Transient Thermal Resistance Data

Considering Input Filter to Reduce Conducted Emissions by DCDC Converter

Design Guide and Example of Stencil for Exposed Pad

Heat Dissipation Effect of Thermal Via in Exposed Pad Type Package

Calculation of Power Dissipation in Switching Circuit

Five Steps for Successful Thermal Design of IC

Precautions for PCB Layout Regarding Common Mode Filters

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

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

PCB Layout Thermal Design Guide

How to Use the Two-Resistor Model

Judgment Criteria of Thermal Evaluation

Thermal Resistance

Efficiency of Buck Converter

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

Evaluation Board User's Guide

SOP-J8 Package Information

Solder Joint Rate and Thermal Resistance of Exposed Pad

Impedance Characteristics of Bypass Capacitor

Power Supply Sequence Circuit with General Purpose Power Supply IC

Capacitor Calculation for Buck converter IC

BD9E101FJ-LB(H2) Data Sheet

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

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

Calculation of Power Loss (Synchronous)

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

Resistor Value Table to set Output Voltage of Buck Converter IC

Factory Information

BD9E101FJ-LB(H2) Reference Circuits and Bomlist

PCB Layout Essential Check sheet for Switching Regulator

Phase Compensation Design for Current Mode Buck Converter

Diode Selection Method for Asynchronous Converter

Bootstrap Circuit in the Buck Converter

Basics of Thermal Resistance and Heat Dissipation

θ<sub>JA</sub> and Ψ<sub>JT</sub>

Compliance with the ELV directive

Anti-Whisker formation

θ<sub>JC</sub> and Ψ<sub>JT</sub>

PCB Layout Techniques of Buck Converter

BD9E101 Series