JAJSPW0B June   2023  – June 2024 TPS543B25T

PRODUCTION DATA  

  1.   1
  2. 特長
  3. アプリケーション
  4. 概要
  5. Pin Configuration and Functions
  6. Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  VIN Pins and VIN UVLO
      2. 6.3.2  Internal Linear Regulator and Bypassing
      3. 6.3.3  Enable and Adjustable UVLO
        1. 6.3.3.1 Internal Sequence of Events During Start-Up
      4. 6.3.4  Switching Frequency Selection
      5. 6.3.5  Switching Frequency Synchronization to an External Clock
        1. 6.3.5.1 Internal PWM Oscillator Frequency
        2. 6.3.5.2 Loss of Synchronization
        3. 6.3.5.3 Interfacing the SYNC/FSEL Pin
      6. 6.3.6  Remote Sense Amplifier and Adjusting the Output Voltage
      7. 6.3.7  Loop Compensation Guidelines
        1. 6.3.7.1 Output Filter Inductor Tradeoffs
        2. 6.3.7.2 Ramp Capacitor Selection
        3. 6.3.7.3 Output Capacitor Selection
        4. 6.3.7.4 Design Method for Good Transient Response
      8. 6.3.8  Soft Start and Prebiased Output Start-Up
      9. 6.3.9  MSEL Pin
      10. 6.3.10 Power Good (PG)
      11. 6.3.11 Output Overload Protection
        1. 6.3.11.1 Positive Inductor Current Protection
        2. 6.3.11.2 Negative Inductor Current Protection
      12. 6.3.12 Output Overvoltage and Undervoltage Protection
      13. 6.3.13 Overtemperature Protection
      14. 6.3.14 Output Voltage Discharge
    4. 6.4 Device Functional Modes
      1. 6.4.1 Forced Continuous-Conduction Mode
      2. 6.4.2 Discontinuous Conduction Mode During Soft Start
  8. Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 1.0V Output, 1MHz Application
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
          1. 7.2.1.2.1  Custom Design With WEBENCH® Tools
          2. 7.2.1.2.2  Switching Frequency
          3. 7.2.1.2.3  Output Inductor Selection
          4. 7.2.1.2.4  Output Capacitor
          5. 7.2.1.2.5  Input Capacitor
          6. 7.2.1.2.6  Adjustable Undervoltage Lockout
          7. 7.2.1.2.7  Output Voltage Resistors Selection
          8. 7.2.1.2.8  Bootstrap Capacitor Selection
          9. 7.2.1.2.9  VDRV and VCC Capacitor Selection
          10. 7.2.1.2.10 PGOOD Pullup Resistor
          11. 7.2.1.2.11 Current Limit Selection
          12. 7.2.1.2.12 Soft-Start Time Selection
          13. 7.2.1.2.13 Ramp Selection and Control Loop Stability
          14. 7.2.1.2.14 MODE Pin
        3. 7.2.1.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
      3. 7.4.3 Thermal Performance
  9. Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Custom Design With WEBENCH® Tools
    2. 8.2 ドキュメントの更新通知を受け取る方法
    3. 8.3 サポート・リソース
    4. 8.4 Trademarks
    5. 8.5 静電気放電に関する注意事項
    6. 8.6 用語集
  10. Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Application Curves

TPS543B25T Efficiency CurvesFigure 7-4 Efficiency Curves
TPS543B25T Line RegulationFigure 7-6 Line Regulation
TPS543B25T Load
                        TransientFigure 7-8 Load Transient
TPS543B25T EN Start-Up – Measuring
                                                  SWFigure 7-10 EN Start-Up – Measuring SW
TPS543B25T EN Start-Up – With
                                                  LoadFigure 7-12 EN Start-Up – With Load
TPS543B25T VIN
                                                  Start-UpFigure 7-14 VIN Start-Up
TPS543B25T Output Ripple – No LoadFigure 7-16 Output Ripple – No Load
TPS543B25T Input
                        Ripple – No LoadFigure 7-18 Input Ripple – No Load
TPS543B25T Overcurrent Protection – OverloadFigure 7-20 Overcurrent Protection – Overload
TPS543B25T Overcurrent Protection – Hiccup and RecoverFigure 7-22 Overcurrent Protection – Hiccup and Recover
TPS543B25T Load
                        RegulationFigure 7-5 Load Regulation
TPS543B25T Bode PlotFigure 7-7 Bode Plot
TPS543B25T EN Start-Up – Measuring
                                                  BP5Figure 7-9 EN Start-Up – Measuring BP5
TPS543B25T EN
                        ShutdownFigure 7-11 EN Shutdown
TPS543B25T EN Start-Up – 0.5V
                                                  PrebiasFigure 7-13 EN Start-Up – 0.5V Prebias
TPS543B25T VIN ShutdownFigure 7-15 VIN Shutdown
TPS543B25T Output Ripple – Full LoadFigure 7-17 Output Ripple – Full Load
TPS543B25T Input
                        Ripple – Full LoadFigure 7-19 Input Ripple – Full Load
TPS543B25T Overcurrent Protection – ShortFigure 7-21 Overcurrent Protection – Short