JAJSBM7C September   2011  – October 2017 TPS54623

PRODUCTION DATA.  

  1. 特長
  2. アプリケーション
  3. 概要
    1.     効率と負荷電流との関係
  4. 改訂履歴
  5. Pin Configuration and Functions
    1.     Pin Functions
  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
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  VIN and Power VIN Pins (VIN and PVIN)
      2. 7.3.2  Voltage Reference
      3. 7.3.3  Adjusting the Output Voltage
      4. 7.3.4  Safe Start-up into Pre-Biased Outputs
      5. 7.3.5  Error Amplifier
      6. 7.3.6  Slope Compensation
      7. 7.3.7  Enable and Adjusting Undervoltage Lockout
      8. 7.3.8  Slow Start (SS/TR)
      9. 7.3.9  Power Good (PWRGD)
      10. 7.3.10 Bootstrap Voltage (BOOT) and Low Dropout Operation
      11. 7.3.11 Sequencing (SS/TR)
      12. 7.3.12 Output Overvoltage Protection (OVP)
      13. 7.3.13 Overcurrent Protection
        1. 7.3.13.1 High-side MOSFET Overcurrent Protection
        2. 7.3.13.2 Low-side MOSFET Overcurrent Protection
      14. 7.3.14 Thermal Shutdown
      15. 7.3.15 Small Signal Model for Loop Response
      16. 7.3.16 Simple Small Signal Model for Peak Current Mode Control
      17. 7.3.17 Small Signal Model for Frequency Compensation
    4. 7.4 Device Functional Modes
      1. 7.4.1 Fixed Frequency PWM Control
      2. 7.4.2 Continuous Current Mode Operation (CCM)
      3. 7.4.3 Light Load Efficiency Operation
      4. 7.4.4 Adjustable Switching Frequency and Synchronization (RT/CLK)
        1. 7.4.4.1 Adjustable Switching Frequency (RT Mode)
        2. 7.4.4.2 Synchronization (CLK mode)
  8. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Fast Transient Considerations
    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  Operating Frequency
        3. 8.2.2.3  Output Inductor Selection
        4. 8.2.2.4  Output Capacitor Selection
        5. 8.2.2.5  Input Capacitor Selection
        6. 8.2.2.6  Slow Start Capacitor Selection
        7. 8.2.2.7  Bootstrap Capacitor Selection
        8. 8.2.2.8  Under Voltage Lockout Set Point
        9. 8.2.2.9  Output Voltage Feedback Resistor Selection
          1. 8.2.2.9.1 Minimum Output Voltage
        10. 8.2.2.10 Compensation Component Selection
      3. 8.2.3 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Estimated Circuit Area
    2. 10.2 Layout Examples
  11. 11デバイスおよびドキュメントのサポート
    1. 11.1 デバイス・サポート
      1. 11.1.1 デベロッパー・ネットワークの製品に関する免責事項
      2. 11.1.2 開発サポート
      3. 11.1.3 WEBENCH®ツールによるカスタム設計
    2. 11.2 ドキュメントのサポート
      1. 11.2.1 関連資料
    3. 11.3 ドキュメントの更新通知を受け取る方法
    4. 11.4 コミュニティ・リソース
    5. 11.5 商標
    6. 11.6 静電気放電に関する注意事項
    7. 11.7 Glossary
  12. 12メカニカル、パッケージ、および注文情報

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

Typical Characteristics

TPS54623 rdson_tj_lvs949.gifFigure 1. High-Side RDS(on) vs Temperature
TPS54623 vref_junc_lvsa70.gifFigure 3. Voltage Reference vs Temperature
TPS54623 isd_vi_lvs949.gifFigure 5. Shutdown Quiescent Current
vs Input Voltage
TPS54623 hys_pullup_lvs949.gifFigure 7. Pin Pullup Current vs Temperature
TPS54623 iq_vi_lvsb09.gifFigure 9. Non-Switching Operating Quiescent
Current (VIN) vs Input Voltage
TPS54623 sstr_junc_lvsa70.gifFigure 11. (SS/TR - VSENSE) Offset vs Temperature
TPS54623 hi_sd_cur_vi_lvs949.gifFigure 13. High-Side Current limit Threshold
vs Input Voltage
TPS54623 mincon_duty_lvsa70.gifFigure 15. Minimum Controllable Duty Ratio
vs Junction Temperature
TPS54623 rdsonl_tj_lvs949.gifFigure 2. Low-Side RDS(on) vs Temperature
TPS54623 fsw_tj_lvsa70.gifFigure 4. Oscillator Frequency vs Temperature
TPS54623 hys_tj_lvs949.gifFigure 6. EN Pin Hysteresis Current vs Temperature
TPS54623 en_tj_lvs949.gifFigure 8. Pin UVLO Threshold vs Temperature
TPS54623 ss_tj_lvs949.gifFigure 10. Slow Start Charge Current
vs Temperature
TPS54623 pwrgd_junc_lvsa70.gifFigure 12. PWRGD Threshold vs Temperature
TPS54623 t_tj_lvsa70.gifFigure 14. Minimum Controllable On Time
vs Temperature
TPS54623 boot_tj_lvs949.gifFigure 16. BOOT-PH UVLO Threshold
vs Temperature