BD9S000NUX-C

2.7V to 5.5V Input, 600mA Single Synchronous Buck DC/DC Converter for Automotive

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BD9S000NUX-C

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BD9S000NUX-C
2.7V to 5.5V Input, 600mA Single Synchronous Buck DC/DC Converter for Automotive

BD9S000NUX-C is a synchronous buck DC/DC Converter with built-in low On Resistance power MOSFETs. It is capable of providing current up to 600 mA. Small inductor is applicable due to high switching frequency of 2.2 MHz. It is a current mode control DC/DC Converter and features high-speed transient response. It has a built-in phase compensation circuit. Applications can be created with a few external components.

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Data Sheet	BD9S000NUX-C Data Sheet	2018/05/30

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Technical Articles

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Type	Title	Last Updated
Technical Article	Overview of ROHM's Simulation Models(for ICs and Discrete Semiconductors)	2025/04/16
White Paper	Three Steps for Successful Design of DC-DC Converters	2024/12/06
Schematic Design & Verification	Step-down DC-DC converter PCB layout EMC Design guide	2024/11/13
White Paper	Five Steps for Successful Thermal Design of IC	2024/09/13
Thermal Design	Solder Joint Rate and Thermal Resistance of Exposed Pad	2024/07/05
Technical Article	Precautions for PCB Layout Regarding Common Mode Filters	2024/04/10
Thermal Design	Thermal Resistance	2024/03/19
Thermal Design	How to Use the Two-Resistor Model	2023/08/08
Schematic Design & Verification	PCB Layout Essential Check sheet for Switching Regulator	2023/08/08
Thermal Design	Judgment Criteria of Thermal Evaluation	2023/03/08
Thermal Design	How to Use the Thermal Resistance and Thermal Characteristics Parameters	2023/02/24
Thermal Design	θ_JA and Ψ_JT	2023/02/13
Thermal Design	θ_JC and Ψ_JT	2023/01/20
Schematic Design & Verification	Efficiency of Buck Converter	2022/12/13
Thermal Design	PCB Layout Thermal Design Guide	2022/07/12
Thermal Design	Heat Dissipation Effect of Thermal Via in Exposed Pad Type Package	2022/07/08
White Paper	Cutting-Edge Web Simulation Tool “ROHM Solution Simulator” Capable of Complete Circuit Verification of Power Devices and Driver ICs	2022/03/11
Thermal Design	Design Guide and Example of Stencil for Exposed Pad	2021/11/19
Schematic Design & Verification	Types of Capacitors Used for Output Smoothing of Switching Regulators and their Precautions	2021/11/05
Thermal Design	Basics of Thermal Resistance and Heat Dissipation	2021/08/18
Thermal Design	What Is Thermal Design	2021/06/24
Thermal Design	Method for Calculating Junction Temperature from Transient Thermal Resistance Data	2021/06/14
Schematic Design & Verification	Considering Polarity of Power Inductor to Reduce Radiated Emission of DC-DC converter	2021/02/12
Thermal Design	Precautions When Measuring the Rear of the Package with a Thermocouple	2020/10/26
Schematic Design & Verification	Considering Input Filter to Reduce Conducted Emissions by DCDC Converter	2020/10/22
White Paper	For Automotive ADAS/Infotainment application, CISPR25 Class5 compliant 8 rails power tree Reference Design with power rail monitoring for supporting functional safety	2020/10/19
Schematic Design & Verification	Impedance Characteristics of Bypass Capacitor	2020/09/16
Schematic Design & Verification	Calculation of Power Dissipation in Switching Circuit	2020/07/31
Thermal Design	Two-Resistor Model for Thermal Simulation	2020/04/09
Schematic Design & Verification	Diode Selection Method for Asynchronous Converter	2019/11/18
Schematic Design & Verification	Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter	2019/10/10
Schematic Design & Verification	Power Supply Sequence Circuit with General Purpose Power Supply IC	2019/08/26
Schematic Design & Verification	Method for Determining Constants of Peripheral Parts of Buck DC/DC Converter	2019/02/22
Schematic Design & Verification	Bootstrap Circuit in the Buck Converter	2018/11/30
Schematic Design & Verification	Phase Compensation Design for Current Mode Buck Converter	2018/11/12
Schematic Design & Verification	Usage of SPICE Macromodel for DC/DC	2018/08/22
Schematic Design & Verification	Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)	2017/06/21
Schematic Design & Verification	Snubber Circuit for Buck Converter IC	2016/11/04
Schematic Design & Verification	Considerations for Power Inductors Used for Buck Converters	2016/01/18
Schematic Design & Verification	Calculation of Power Loss (Synchronous)	2015/09/28
Schematic Design & Verification	The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit	2013/04/22
Schematic Design & Verification	PCB Layout Techniques of Buck Converter	2012/12/28
Schematic Design & Verification	Resistor Value Table to set Output Voltage of Buck Converter IC	2012/11/20
Schematic Design & Verification	Capacitor Calculation for Buck converter IC	2012/06/01
Schematic Design & Verification	Inductor Calculation for Buck converter IC	2012/06/01

Type	Title	Last Updated
No data available in table

Tools

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Type	Title	Last Updated
Models	Unencrypted SPICE Model (Inquiry Form)	2022/03/31
2D/3D/CAD	BD9S000NUX-C Footprint / Symbol	2020/05/21
2D/3D/CAD	VSON008X2020 Footprint / Symbol	2020/05/12
2D/3D/CAD	VSON008X2020 3D STEP Data	2020/05/07
Models	BD9S000NUX-C SPICE Modeling Report	2019/11/28
Models	BD9S000NUX-C PSpice Model	2019/11/28
2D/3D/CAD		-

Type	Title	Last Updated
Package Information	VSON008X2020 Package Information	2018/12/21
Manufacturing Data	Factory Information	2016/09/30

BD9S000NUX-C

BD9S000NUX-C
2.7V to 5.5V Input, 600mA Single Synchronous Buck DC/DC Converter for Automotive

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