JAJST77 July   2024 TPS551892-Q1

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  VCC Power Supply
      2. 6.3.2  EXTVCC Power Supply
      3. 6.3.3  Input Undervoltage Lockout
      4. 6.3.4  Enable and Programmable UVLO
      5. 6.3.5  Soft Start
      6. 6.3.6  Shutdown
      7. 6.3.7  Switching Frequency
      8. 6.3.8  Switching Frequency Dithering
      9. 6.3.9  Inductor Current Limit
      10. 6.3.10 Internal Charge Path
      11. 6.3.11 Output Voltage Setting
      12. 6.3.12 Output Current Monitoring and Cable Voltage Droop Compensation
      13. 6.3.13 Output Current Limit
      14. 6.3.14 Overvoltage Protection
      15. 6.3.15 Output Short Circuit Protection
      16. 6.3.16 Power Good
      17. 6.3.17 Constant Current Output Indication
      18. 6.3.18 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 PWM Mode
      2. 6.4.2 Power Save Mode
  8. Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Switching Frequency
        2. 7.2.2.2 Output Voltage Setting
        3. 7.2.2.3 Inductor Selection
        4. 7.2.2.4 Input Capacitor
        5. 7.2.2.5 Output Capacitor
        6. 7.2.2.6 Output Current Limit
        7. 7.2.2.7 Loop Stability
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 サード・パーティ製品に関する免責事項
    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

Typical Characteristics

VIN = 12 V, TA = 25°C, fSW = 400 kHz, unless otherwise noted.
VIN = 12 V, TA = 25°C, fSW = 400 kHz, unless otherwise noted.TPS551892-Q1 Efficiency vs Output
            Current, VOUT = 5V, FPWMFigure 5-1 Efficiency vs Output Current,
VOUT = 5V, FPWM.
VIN = 12 V, TA = 25°C, fSW = 400 kHz, unless otherwise noted.
TPS551892-Q1 Efficiency vs Output Current, VOUT = 9V, FPWMFigure 5-3 Efficiency vs Output Current,
VOUT = 9V, FPWM
TPS551892-Q1 Efficiency vs Output Current, VOUT = 12V, FPWMFigure 5-5 Efficiency vs Output Current,
VOUT = 12V, FPWM
TPS551892-Q1 Efficiency vs Output Current, VOUT = 15V, FPWMFigure 5-7 Efficiency vs Output Current,
VOUT = 15V, FPWM
TPS551892-Q1 Efficiency vs Output Current, VOUT = 20V, FPWMFigure 5-9 Efficiency vs Output Current,
VOUT = 20V, FPWM
TPS551892-Q1 Switching Frequency vs Setting
            ResistanceFigure 5-11 Switching Frequency vs Setting Resistance
TPS551892-Q1 Quiescent Current vs
            TemperatureFigure 5-13 Quiescent Current vs Temperature
TPS551892-Q1 ENABLE/UVLO Rising Threshold vs
            TemperatureFigure 5-15 ENABLE/UVLO Rising Threshold vs Temperature
TPS551892-Q1 CDC Voltage vs Output Current with
              RSENSE = 10mΩFigure 5-17 CDC Voltage vs Output Current with RSENSE = 10mΩ
TPS551892-Q1 Efficiency vs Output
            Current, VOUT = 5V, PFMFigure 5-2 Efficiency vs Output Current,
VOUT = 5V, PFM
TPS551892-Q1 Efficiency vs Output Current, VOUT = 9V, PFMFigure 5-4 Efficiency vs Output Current,
VOUT = 9V, PFM
TPS551892-Q1 Efficiency vs Output Current, VOUT = 12V, PFMFigure 5-6 Efficiency vs Output Current,
VOUT = 12V, PFM
TPS551892-Q1 Efficiency vs Output Current, VOUT = 15V, PFMFigure 5-8 Efficiency vs Output Current,
VOUT = 15V, PFM
TPS551892-Q1 Efficiency vs Output Current, VOUT = 20V, PFMFigure 5-10 Efficiency vs Output Current,
VOUT = 20V, PFM
TPS551892-Q1 Reference Voltage vs Temperature
              (VREF = 1.2V)Figure 5-12 Reference Voltage vs Temperature (VREF = 1.2V)
TPS551892-Q1 Shutdown Current vs
            TemperatureFigure 5-14 Shutdown Current vs Temperature
TPS551892-Q1 Switching Frequency vs
            TemperatureFigure 5-16 Switching Frequency vs Temperature