ZHCSB15B May   2013  – October 2023 TPS54531

PRODUCTION DATA  

1.   1
2. 1 特性
3. 2 应用
4. 3 说明
5. 4 Revision History
6. 5 Pin Configuration and Functions
7. 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
8. 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  Voltage Reference (Vref)
      3. 7.3.3  Bootstrap Voltage (BOOT)
      4. 7.3.4  Enable and Adjustable Input Undervoltage Lockout (VIN UVLO)
      5. 7.3.5  Programmable Slow Start Using SS Pin
      6. 7.3.6  Error Amplifier
      7. 7.3.7  Slope Compensation
      8. 7.3.8  Current-Mode Compensation Design
      9. 7.3.9  Overcurrent Protection and Frequency Shift
      10. 7.3.10 Overvoltage Transient Protection
      11. 7.3.11 Thermal Shutdown
   4. 7.4 Device Functional Modes
      1. 7.4.1 Eco-mode
      2. 7.4.2 Operation With VIN < 3.5 V
      3. 7.4.3 Operation With EN Control
9. 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  Switching Frequency
         3. 8.2.2.3  Output Voltage Set Point
         4. 8.2.2.4  Undervoltage Lockout Set Point
         5. 8.2.2.5  Input Capacitors
         6. 8.2.2.6  Output Filter Components
            1. 8.2.2.6.1 Inductor Selection
            2. 8.2.2.6.2 Capacitor Selection
         7. 8.2.2.7  Compensation Components
         8. 8.2.2.8  Bootstrap Capacitor
         9. 8.2.2.9  Catch Diode
         10. 8.2.2.10 Slow-Start Capacitor
         11. 8.2.2.11 Output Voltage Limitations
         12. 8.2.2.12 Power Dissipation Estimate
      3. 8.2.3 Application Curves
   3. 8.3 Power Supply Recommendations
   4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
      3. 8.4.3 Electromagnetic Interference (EMI) Considerations
10. 9 Device and Documentation Support
    1. 9.1 Device Support
       1. 9.1.1 Development Support
          1. 9.1.1.1 Custom Design With WEBENCH® Tools
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 静电放电警告
    6. 9.6 术语表
11. 10Mechanical, Packaging, and Orderable Information

TPS54531 具有 Eco-mode 的 5A、28V 输入、SWIFT 降压转换器

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