ZHCSEW7A December   2015  – April 2016 TPS54A20

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 Configuration 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 Timing Requirements
    7. 6.7 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  Frequency Selection
      2. 7.3.2  External Clock Syncronization
      3. 7.3.3  Adjusting the Output Voltage
      4. 7.3.4  Soft Start
      5. 7.3.5  Startup into Pre-biased Outputs
      6. 7.3.6  Power Good (PGOOD)
      7. 7.3.7  Overcurrent Protection
      8. 7.3.8  Light Load Operation
      9. 7.3.9  Output Undervoltage/Overvoltage Protection
      10. 7.3.10 Input Undervoltage/Overvoltage Lockout
      11. 7.3.11 Enable and Adjusting Undervoltage Lockout
      12. 7.3.12 Series Capacitor Monitoring
        1. 7.3.12.1 Dropping Below 35% Threshold
        2. 7.3.12.2 Rising Above 65% Threshold
      13. 7.3.13 Thermal Shutdown
      14. 7.3.14 Phase A Power Stage
      15. 7.3.15 Phase B Power Stage
      16. 7.3.16 Internal Gate Drive Regulator
      17. 7.3.17 Voltage Feed Forward
      18. 7.3.18 Internal Oscillator
      19. 7.3.19 Pulse Frequency Detector
      20. 7.3.20 On-Time Generator
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Two-Phase Series Capacitor Buck Converter Topology
      2. 8.1.2 Converter Switch Configurations
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1  Output Voltage
        2. 8.2.2.2  Switching Frequency
        3. 8.2.2.3  On-Time
        4. 8.2.2.4  Inductor Selection
        5. 8.2.2.5  Output Capacitor Selection
        6. 8.2.2.6  Input Capacitor Selection
        7. 8.2.2.7  Series Capacitor Selection
        8. 8.2.2.8  Soft-Start Time Selection
        9. 8.2.2.9  Bootstrap Capacitor Selection
        10. 8.2.2.10 Gate Drive Capacitor Selection
        11. 8.2.2.11 Under Voltage Lockout Set Point
        12. 8.2.2.12 Current Limit Selection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 文档支持
    2. 11.2 社区资源
    3. 11.3 商标
    4. 11.4 静电放电警告
    5. 11.5 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)
  • RNJ|20
散热焊盘机械数据 (封装 | 引脚)
订购信息

11 器件和文档支持

11.1 文档支持

《优化内部补偿 DC-DC 转换器的瞬态响应》，SLVA289。

《串联电容降压转换器简介》，SLVA750。

11.2 社区资源

The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use.

    TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers.
    Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support.

11.3 商标

E2E is a trademark of Texas Instruments.

11.4 静电放电警告

esds-image

这些装置包含有限的内置 ESD 保护。 存储或装卸时，应将导线一起截短或将装置放置于导电泡棉中，以防止 MOS 门极遭受静电损伤。

11.5 Glossary

SLYZ022 — TI Glossary.

This glossary lists and explains terms, acronyms, and definitions.