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Integrated Circuits (ICs)

BD9G201UEFJ-LBE2

Active
Rohm Semiconductor

DC/DC CONV, BUCK, 500KHZ, 105DEG C ROHS COMPLIANT: YES

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Product dimension image
Integrated Circuits (ICs)

BD9G201UEFJ-LBE2

Active
Rohm Semiconductor

DC/DC CONV, BUCK, 500KHZ, 105DEG C ROHS COMPLIANT: YES

Technical Specifications

Parameters and characteristics for this part

SpecificationBD9G201UEFJ-LBE2
Current - Output1.5 A
Frequency - Switching300 kHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]105 ░C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / Case0.154 in
Package / Case8-SOIC
Package / Case3.9 mm
Supplier Device Package8-HTSOP-JES
Synchronous RectifierFalse
TopologyBuck
Voltage - Input (Max) [Max]42 V
Voltage - Input (Min) [Min]4.5 V
Voltage - Output (Max) [Max]42 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$ 2.09
10$ 1.87
25$ 1.77
100$ 1.51
250$ 1.41
500$ 1.24
1000$ 1.03
Digi-Reel® 1$ 2.09
10$ 1.87
25$ 1.77
100$ 1.51
250$ 1.41
500$ 1.24
1000$ 1.03
Tape & Reel (TR) 2500$ 0.88
NewarkEach (Supplied on Cut Tape) 1$ 3.09
10$ 1.99
25$ 1.70
50$ 1.53
100$ 1.35
250$ 1.19
500$ 1.08
1000$ 0.99

Description

General part information

BD9G201UEFJ-LB Series

BD9G201UEFJ-LB is a buck converter with built-in high side MOSFET. It has an input voltage range of 4.5V to 42V. Current mode architecture provides fast transient response and a simple phase compensation setup. The IC is mainly used as a secondary side power supply: for example, a step-down output of 3.3V/5V can be produced from voltage power supply such as 12V or 24V. In addition, it has a synchronization function with an external CLK that provides noise management.This IC uses different production line against series model BD9G201EFJ-LB for the purpose of improving production efficiency. We recommend using this IC for your new development. Electric characteristics noted in Datasheet does not differ between Production Line. In addition, the data of BD9G201EFJ-LB is disclosed for documents and design models unless otherwise specified.

Documents

Technical documentation and resources

PCB Layout Techniques of Buck Converter

Schematic Design & Verification

Judgment Criteria of Thermal Evaluation

Thermal Design

Considerations for Power Inductors Used for Buck Converters

Schematic Design & Verification

What Is Thermal Design

Thermal Design

Efficiency of Buck Converter

Schematic Design & Verification

User's Guide for BD9G201EFJ-EVK-001 Evaluation Board

User's Guide

Snubber Circuit for Buck Converter IC

Schematic Design & Verification

Design Guide and Example of Stencil for Exposed Pad

Thermal Design

Calculation of Power Loss (Synchronous)

Schematic Design & Verification

θ<sub>JA</sub> and Ψ<sub>JT</sub>

Thermal Design

Considering Input Filter to Reduce Conducted Emissions by DCDC Converter

Schematic Design & Verification

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

Schematic Design & Verification

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

Schematic Design & Verification

PCB Layout Essential Check sheet for Switching Regulator

Schematic Design & Verification

PCB Layout Thermal Design Guide

Thermal Design

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

Technical Article

BD9G201UEFJ-LB Data Sheet

Data Sheet

Capacitor Calculation for Buck converter IC

Schematic Design & Verification

Resistor Value Table to set Output Voltage of Buck Converter IC

Schematic Design & Verification

Heat Dissipation Effect of Thermal Via in Exposed Pad Type Package

Thermal Design

Method for Calculating Junction Temperature from Transient Thermal Resistance Data

Thermal Design

Five Steps for Successful Thermal Design of IC

White Paper

Power Supply Sequence Circuit with General Purpose Power Supply IC

Schematic Design & Verification

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

Schematic Design & Verification

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

Schematic Design & Verification

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

Schematic Design & Verification

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

White Paper

Two-Resistor Model for Thermal Simulation

Thermal Design

Thermal Resistance

Thermal Design

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

Schematic Design & Verification

How to Use the Thermal Resistance and Thermal Characteristics Parameters

Thermal Design

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

Schematic Design & Verification

Impedance Characteristics of Bypass Capacitor

Schematic Design & Verification

Factory Information

Manufacturing Data

Three Steps for Successful Design of DC-DC Converters

White Paper

Phase Compensation Design for Current Mode Buck Converter

Schematic Design & Verification

Precautions for PCB Layout Regarding Common Mode Filters

Technical Article

BD9G201EFJ-LB Spice Modeling Report

Models

Solder Joint Rate and Thermal Resistance of Exposed Pad

Thermal Design