BD9S201NUX-C
車電用 2.7V~5.5V輸入 2A 1ch 同步整流降壓 DC/DC轉換器

BD9S201NUX-C系列是內建低導通電阻的功率MOSFET的同步整流降壓型DC/DC轉換器。最大可輸出2A的電流。具有2.2MHz高速開關頻率,適用於小型電感。具有基於電流模式控制的高速瞬態回應性能。另外,內建相位補償電路,可用較少的外接零部件構建應用。

8-channel power tree Reference Design
For automotive ADAS and Info-Display

Product Detail

 
料號 | BD9S201NUX-CE2
狀態 | 推薦品
封裝 | VSON008X2020
單位數量 | 4000
最小包裝數量 | 4000
包裝形式 | Taping
RoHS | Yes

功能安全:

類別 : FS supportive
A product that has been developed for automotive use and is capable of supporting safety analysis with regard to the functional safety.

規格:

Grade

Automotive

Common Standard

AEC-Q100 (Automotive Grade)

ch

1

Integrated FET / Controller

Integrated FET

Topology

Buck

Synchronous / Nonsynchronous

Synchronous

Vin1(Min.)[V]

2.7

Vin1(Max.)[V]

5.5

Vout1(Min.)[V]

0.8

Vout1(Max.)[V]

5.5

Iout1(Max.)[A]

2.0

SW frequency(Max.)[MHz]

2.2

Light Load mode

No

EN

Yes

PGOOD

Yes

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

功能:

  • AEC-Q100 Qualified (Grade 1)
  • Single Synchronous Buck DC/DC Converter
  • Adjustable Soft Start Function
  • Output Discharge Function
  • Power Good Output
  • Input Under Voltage Lockout Protection (UVLO)
  • Short Circuit Protection (SCP)
  • Output Over Voltage Protection (OVP)
  • Over Current Protection (OCP)
  • Thermal Shutdown Protection (TSD)

Evaluation
Board

 
    • Reference Design
    • REFRPT001-EVK-001
    • The REFRPT001-EVK-001 is a board included in power tree solution reference design named as REFRPT001 developed for infotainment devices such as vehicle clusters and center information displays, as well as for ADAS ECUs. The power system that can support functional safety is integrated on a single board, realizing an optimal configuration as a power tree.

  • User's Guide Detail
    • Evaluation Board
    • BD9S201NUX-TSB-001
    • This is an evaluation board for BD9S201NUX-C. BD9S201NUXC is a synchronous buck DC/DC converter with built-in low On Resistance power MOSFETs. The BD9S201NUX-C accepts a power supply input range of 2.7V to 5.5V and generates a maximum output current of 2A. BD9S201NUX-C generates an output voltage range of 0.8V to VIN using external resistors. BD9S201NUX-C is a current mode control DC/DC Converter and features high-speed transient response.

  • User's Guide Purchase Inquiry

Design Resources

 

Documents

White Paper

  • Cutting-Edge Web Simulation Tool “ROHM Solution Simulator” Capable of Complete Circuit Verification of Power Devices and Driver ICs
  • For Automotive ADAS/Infotainment application, CISPR25 Class5 compliant 8 rails power tree Reference Design with power rail monitoring for supporting functional safety

User's Guide

  • User's Guide for REFRPT001-EVK-001
  • Evaluation Board User's Guide for BD9S201NUX-C

Reference Design

  • Application Note for REFRPT001-EVK-001
  • REFRPT001-EVK-001 EMC Test Report

Technical Articles

Schematic Design & Verification

  • Calculation of Power Dissipation in Switching Circuit
  • Considering Input Filter to Reduce Conducted Emissions by DCDC Converter
  • Considering Polarity of Power Inductor to Reduce Radiated Emission of DC-DC converter
  • Method for Monitoring Switching Waveform
  • PCB Layout Techniques of Buck Converter
  • Phase Compensation Design for Current Mode Buck Converter
  • Bootstrap Circuit in the Buck Converter
  • Method for Determining Constants of
  • Power Supply Sequence Circuit with General Purpose Power Supply IC
  • Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
  • Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
  • Usage of SPICE Macromodel for DC/DC
  • Snubber Circuit for Buck Converter IC
  • Efficiency of Buck Converter
  • Calculation of Power Loss (Synchronous)
  • Inductor Calculation for Buck converter IC
  • Considerations for Power Inductors Used for Buck Converters
  • Capacitor Calculation for Buck converter IC
  • The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit
  • Resistor Value Table to set Output Voltage of Buck Converter IC
  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Notes for Temperature Measurement Using Thermocouples
  • Two-Resistor Model for Thermal Simulation
  • Notes for Temperature Measurement Using Forward Voltage of PN Junction
  • Thermal Resistance
  • Precautions When Measuring the Rear of the Package with a Thermocouple

Tools

Simulations (Login Required)

「ROHM Solution Simulator」是一款能在ROHM官網上運行的電子電路模擬工具。從零件選擇和元件單體驗證等研發初期階段到系統級的驗證階段,各項模擬工作都可以在Web上執行。ROHM提供的SiC元件等功率元件產品、驅動IC和電源IC等IC產品,都可以在接近實際環境的解決方案電路中輕易地進行驗證,大幅縮短研發週期。
  • REFRPT001 / Load Response for 5.0V Power Tree Sub-circuit
  • REFRPT001 / Load Response for 3.3V Power Tree Sub-circuit
  • Simulation Guide for REFRPT001 for 5.0V power tree sub-circuit / Load Response (ROHM Solution Simulator)
  • Simulation Guide for REFRPT001 for 3.3V power tree sub-circuit / Load Response (ROHM Solution Simulator)

Models

  • BD9S201NUX-C Two-Resistor Thermal Model Report
  • BD9S201NUX-C SPICE Model

2D/3D/CAD

  • BD9S201NUX-C Footprint / Symbol
  • VSON008X2020 Footprint / Symbol
  • VSON008X2020 3D STEP Data

Packaging & Quality

Manufacturing Data

  • Factory Information

Environmental Data

  • REACH SVHC Non-use Declaration