ZHCS308F May   2009  – May 2017 TPS54620

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 修订历史记录
  5. 5 Pin Configurations and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Fixed Frequency PWM Control
      2. 7.3.2  Continuous Current Mode Operation (CCM)
      3. 7.3.3  VIN and Power VIN Pins (VIN and PVIN)
      4. 7.3.4  Voltage Reference
      5. 7.3.5  Adjusting the Output Voltage
      6. 7.3.6  Safe Start-Up into Prebiased Outputs
      7. 7.3.7  Error Amplifier
      8. 7.3.8  Slope Compensation
      9. 7.3.9  Enable and Adjusting Undervoltage Lockout
      10. 7.3.10 Adjustable Switching Frequency and Synchronization (RT/CLK)
      11. 7.3.11 Slow Start (SS/TR)
      12. 7.3.12 Power Good (PWRGD)
      13. 7.3.13 Output Overvoltage Protection (OVP)
      14. 7.3.14 Overcurrent Protection
        1. 7.3.14.1 High-Side MOSFET Overcurrent Protection
        2. 7.3.14.2 Low-Side MOSFET Overcurrent Protection
      15. 7.3.15 Thermal Shutdown
      16. 7.3.16 Small Signal Model for Loop Response
      17. 7.3.17 Simple Small Signal Model for Peak Current Mode Control
      18. 7.3.18 Small Signal Model for Frequency Compensation
    4. 7.4 Device Functional Modes
      1. 7.4.1 Adjustable Switching Frequency (RT Mode)
      2. 7.4.2 Synchronization (CLK Mode)
      3. 7.4.3 Bootstrap Voltage (BOOT) and Low-Dropout Operation
      4. 7.4.4 Sequencing (SS/TR)
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedures
        1. 8.2.2.1  Custom Design With WEBENCH Tools
        2. 8.2.2.2  Operating Frequency
        3. 8.2.2.3  Output Inductor Selection
        4. 8.2.2.4  Output Capacitor Selection
        5. 8.2.2.5  Input Capacitor Selection
        6. 8.2.2.6  Slow-Start Capacitor Selection
        7. 8.2.2.7  Bootstrap Capacitor Selection
        8. 8.2.2.8  Undervoltage Lockout Set Point
        9. 8.2.2.9  Output Voltage Feedback Resistor Selection
          1. 8.2.2.9.1 Minimum Output Voltage
        10. 8.2.2.10 Compensation Component Selection
        11. 8.2.2.11 Fast Transient Considerations
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Estimated Circuit Area
    4. 10.4 Thermal Consideration
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 开发支持
        1. 11.1.1.1 使用 WEBENCH 工具定制设计方案
    2. 11.2 接收文档更新通知
    3. 11.3 社区资源
    4. 11.4 商标
    5. 11.5 静电放电警告
    6. 11.6 Glossary
  12. 12机械、封装和可订购信息

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • RHL|14
  • RGY|14
散热焊盘机械数据 (封装 | 引脚)
订购信息

4 修订历史记录

Changes from E Revision (June 2016) to F Revision

  • 将数据表文本更新至最新的文档和转换标准Go
  • 删除了针对 SwitcherPro™ 软件工具的全部参考，因为它不再适用于本部分Go
  • Moved storage temperature ratings to the Absolute Maximum Ratings tableGo
  • Changed Handling Ratings table to ESD RatingsGo
  • Changed RHY package to RHL in the Thermal Information tableGo
  • Changed RGY values in the Thermal Information tableGo
  • Updated packages in the last bullet point of Layout GuidelinesGo
  • Added information to the last list item in Layout GuidelinesGo

Changes from D Revision (October 2014) to E Revision

Changes from C Revision (April 2011) to D Revision

  • 增添了器件信息表、处理定额值表、建议运行条件表和热性能信息表Go
  • Changed the Absolute Maximum Ratings for BOOT-PH, MAX value From: 7 V To: 7.7 V Go
  • Changed Equation 28 From: C7(nF) To: C5(nF)Go

Changes from B Revision (October 2010) to C Revision

  • Changed From separate RHL and RGY packages To a combined RHL and RGY packageGo

Changes from A Revision (January 2010) to B Revision

  • Changed Small Signal Model for Frequency Compensation sectionGo

Changes from * Revision (May 2009) to A Revision

  • Changed “具有集成 FET (SWIFT) 的 17V 输入、6A 输出同步降压开关”的原标题Go
  • Changed PowerPAD to Exposed Thermal PadGo
  • Changed Changed the Absolute Maximum Ratings for EN, MAX value From: 3 V To: 6 VGo
  • Changed minimum switching frequency min value from 180 to 160Go
  • Changed minimum switching frequency max value from 220 to 240Go
  • Added "Type 3" block around C11Go
  • Changed PCB Layout graphicGo