ZHCSI26C August   2010  – April 2018 TPS54320

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化原理图
      2.      效率与负载电流间的关系
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin 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 UVLO
      10. 7.3.10 Slow Start (SS/TR)
      11. 7.3.11 Power Good (PWRGD)
      12. 7.3.12 Bootstrap Voltage (BOOT) and Low Dropout Operation
      13. 7.3.13 Sequencing (SS/TR)
      14. 7.3.14 Output Overvoltage Protection (OVP)
      15. 7.3.15 Overcurrent Protection
        1. 7.3.15.1 High-Side MOSFET Overcurrent Protection
        2. 7.3.15.2 Low-Side MOSFET Overcurrent Protection
      16. 7.3.16 Thermal Shutdown
      17. 7.3.17 Small Signal Model for Loop Response
      18. 7.3.18 Simple Small Signal Model for Peak Current Mode Control
      19. 7.3.19 Small Signal Model for Frequency Compensation
    4. 7.4 Device Functional Modes
      1. 7.4.1 Adjustable Switching Frequency and Synchronization (RT/CLK)
      2. 7.4.2 Adjustable Switching Frequency (RT Mode)
      3. 7.4.3 Synchronization (CLK Mode)
  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 Procedure
        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  UVLO 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
      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 器件支持
      1. 11.1.1 使用 WEBENCH® 工具创建定制设计
    2. 11.2 文档支持
    3. 11.3 商标
    4. 11.4 静电放电警告
    5. 11.5 术语表
  12. 12机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
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 B Revision (November 2014) to C Revision

  • Added WEBENCH 链接和 TI 参考设计顶部导航图标 Go
  • Changed "Handling Ratings" to "ESD Ratings"; move Storage temperature to "Abs Max" table Go
  • Changed RθJA from "47.2" to "42.8" °C/W; RθJC(top)from "64.8" to "39.4" °C/W; RθJB from "14.4" to "15.9" °C/W; ψJT from "0.5" to "0.9"°C/W ; ψJB from "14.7" to "15.9"°C/W ; RθJC(bot) from "3.2" to "3.9" °C/WGo
  • Changed "Ih = 3.4 μA" to "Ih = 2.25 μA" in Equation 3Go
  • Changed "OVP threshold" to "VSENSE falling (Good) threshold of 106%" in last sentence of Output Overvoltage Protection (OVP)Go
  • Corrected pin name from SYNC to RT/CLK in Synchronization (CLK Mode)Go

Changes from A Revision (September 2010) to B Revision

  • 添加处理额定值 表、特性 说明 部分、器件功能模式、应用和实施 部分、电源建议 部分、布局 部分、器件和文档支持 部分以及机械、封装和可订购信息 部分Go
  • Removed Bill of MaterialsGo

Changes from * Revision (August 2010) to A Revision

  • Changed 应用 项目列表Go
  • Changed Figure 34 - Typical App CircuitGo
  • Changed Figure 47 image with new plotGo
  • Changed Figure 51 image with new plotGo
  • Changed Figure 55 Thermal Signature imageGo
  • Added C6 to Bill of Material and changed C8 RefDes to C9 with size 1210 to match SLVU380 User's Guide BoMGo