JAJSOS7 august   2023 TPS51385

PRODUCTION DATA  

  1.   1
  2. 特長
  3. アプリケーション
  4. 概要
  5. Revision History
  6. Pin Configuration and Functions
  7. 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. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  PWM Operation and D-CAP3™ Control Mode
      2. 7.3.2  VCC LDO
      3. 7.3.3  Soft Start
      4. 7.3.4  Enable Control
      5. 7.3.5  Power Good
      6. 7.3.6  Overcurrent Protection and Undervoltage Protection
      7. 7.3.7  UVLO Protection
      8. 7.3.8  Overvoltage Protection
      9. 7.3.9  Output Voltage Discharge
      10. 7.3.10 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 MODE Pin
      2. 7.4.2 Out-of-Audio™ Mode
      3. 7.4.3 Power Save Mode (PSM)
  9. 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 External Component Selection
          1. 8.2.2.1.1 Inductor Selection
          2. 8.2.2.1.2 Output Capacitor Selection
          3. 8.2.2.1.3 Input Capacitor Selection
      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
  10. Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
    2. 9.2 ドキュメントの更新通知を受け取る方法
    3. 9.3 サポート・リソース
    4. 9.4 Trademarks
    5. 9.5 静電気放電に関する注意事項
    6. 9.6 用語集
  11. 10Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ(パッケージ|ピン)
サーマルパッド・メカニカル・データ
発注情報

Application Curves

VIN = 19.5 V, Ta = 25°C unless otherwise specified.

GUID-20230821-SS0I-K0GT-ZMF0-TZM1HPGXCDTL-low.svgFigure 8-2 Efficiency, PSM Mode
GUID-20230821-SS0I-QPQF-WZ6V-080WBJBTMKWM-low.svgFigure 8-4 Switching Frequency, PSM Mode
GUID-20230822-SS0I-773W-ZC8V-7Z340BVRN81W-low.pngFigure 8-6 Start-Up Relative to EN Rising, Iout = 0A, PSM Mode
GUID-20230822-SS0I-9TS0-KX2D-6MXDGHBVCHRK-low.pngFigure 8-8 Start-Up Relative to EN Rising, Iout = 0A, OOA Mode
GUID-20230822-SS0I-9Q2T-RNKN-XQTM8KGQ2W8V-low.pngFigure 8-10 Start-Up Relative to Vin Rising, Iout = 7A
GUID-20230822-SS0I-ZL5K-72ND-PL2M3ZJ6QBXC-low.pngFigure 8-12 Output Voltage Ripple, Iout = 0 A, PSM Mode
GUID-20230822-SS0I-JCLD-STVP-G2MDKNKXBQSC-low.pngFigure 8-14 Output Voltage Ripple, Iout = 7 A
GUID-20230822-SS0I-XKNP-ZLWP-MMWBPFC5QZDT-low.pngFigure 8-16 Transient Response, 0.7 A to 6.3 A with 2.5 A/us SR
GUID-20230823-SS0I-VJ0B-BWZS-NGLRJMH5T6XM-low.svgFigure 8-3 Efficiency, OOA Mode
GUID-20230823-SS0I-LHPJ-XT71-NSPTXHSKQZFX-low.svgFigure 8-5 Switching Frequency, OOA Mode
GUID-20230822-SS0I-CKJW-8QDB-KDHXLQKZS4TW-low.pngFigure 8-7 Shutdown Relative to EN Falling, Iout = 0A, PSM Mode
GUID-20230822-SS0I-JNG4-8FPV-BTCPQ9WD7BQN-low.pngFigure 8-9 Shutdown Relative to EN Falling, Iout = 0A, OOA Mode
GUID-20230822-SS0I-M3F5-D5GL-K10STWR2QVJC-low.pngFigure 8-11 Shutdown Relative to Vin Falling, Iout = 7A
GUID-20230822-SS0I-6XLH-VP07-HTXZKWWRK3PP-low.pngFigure 8-13 Output Voltage Ripple, Iout = 0 A, OOA Mode
GUID-20230822-SS0I-QPH5-WNLQ-37NCVNRPWPQ6-low.pngFigure 8-15 Transient Response, 1.4 A to 5.6 A with 2.5 A/us SR
GUID-20230822-SS0I-KJVB-0XSS-VVGGVT6TCNWS-low.pngFigure 8-17 Normal Operation to Output Hard Short