JAJSMU5B may   2023  – july 2023 TPSM843B22

PRODUCTION DATA  

1.   1
2. 1 特長
3. 2 アプリケーション
4. 3 概要
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  VIN Pins and VIN UVLO
      2. 7.3.2  Internal Bypassing (BP5)
      3. 7.3.3  Enable and Adjustable UVLO
         1. 7.3.3.1 Internal Sequence of Events During Start-up
      4. 7.3.4  Switching Frequency Selection
      5. 7.3.5  Switching Frequency Synchronization to an External Clock
         1. 7.3.5.1 Internal PWM Oscillator Frequency
         2. 7.3.5.2 Loss of Synchronization
         3. 7.3.5.3 Interfacing the SYNC/FSEL Pin
      6. 7.3.6  Remote Sense Amplifier and Adjusting the Output Voltage
      7. 7.3.7  Loop Compensation Guidelines
         1. 7.3.7.1 Output Filter Inductor Tradeoffs
         2. 7.3.7.2 Ramp Capacitor Selection
         3. 7.3.7.3 Output Capacitor Selection
         4. 7.3.7.4 Design Method for Good Transient Response
      8. 7.3.8  Soft Start and Prebiased Output Start-up
      9. 7.3.9  MSEL Pin
      10. 7.3.10 Power Good (PG)
      11. 7.3.11 Output Overload Protection
          1. 7.3.11.1 Positive Inductor Current Protection
          2. 7.3.11.2 Negative Inductor Current Protection
      12. 7.3.12 Output Overvoltage and Undervoltage Protection
      13. 7.3.13 Overtemperature Protection
      14. 7.3.14 Output Voltage Discharge
   4. 7.4 Device Functional Modes
      1. 7.4.1 Forced Continuous-Conduction Mode
      2. 7.4.2 Discontinuous Conduction Mode During Soft Start
9. 8 Application and Implementation
   1. 8.1 Application Information
   2. 8.2 Typical Applications
      1. 8.2.1 1.0-V Output, 1-MHz Application
         1. 8.2.1.1 Design Requirements
         2. 8.2.1.2 Detailed Design Procedure
            1. 8.2.1.2.1  Switching Frequency
            2. 8.2.1.2.2  Output Inductor Selection
            3. 8.2.1.2.3  Output Capacitor
            4. 8.2.1.2.4  Input Capacitor
            5. 8.2.1.2.5  Adjustable Undervoltage Lockout
            6. 8.2.1.2.6  Output Voltage Resistors Selection
            7. 8.2.1.2.7  Bootstrap Capacitor Selection
            8. 8.2.1.2.8  BP5 Capacitor Selection
            9. 8.2.1.2.9  PG Pullup Resistor
            10. 8.2.1.2.10 Current Limit Selection
            11. 8.2.1.2.11 Soft-Start Time Selection
            12. 8.2.1.2.12 Ramp Selection and Control Loop Stability
            13. 8.2.1.2.13 MSEL Pin
         3. 8.2.1.3 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 Thermal Performance
10. 9 Device and Documentation Support
    1. 9.1 ドキュメントの更新通知を受け取る方法
    2. 9.2 サポート・リソース
    3. 9.3 Trademarks
    4. 9.4 静電気放電に関する注意事項
    5. 9.5 用語集
11. 10Mechanical, Packaging, and Orderable Information

TPSM843B22 4V～18V 入力、20A、降圧電源モジュール、内部補償型高度電流モード制御付き