JAJSHM1B July   2008  – June 2019 TPS5450-Q1

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      概略回路図と効率曲線
  4. 4 改訂履歴
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Recommended Operating Conditions
    3. 6.3 Thermal Information
    4. 6.4 Dissipation Ratings
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Oscillator Frequency
      2. 7.3.2  Voltage Reference
      3. 7.3.3  Enable (ENA) and Internal Slow Start
      4. 7.3.4  Undervoltage Lockout (UVLO)
      5. 7.3.5  Output Feedback (VSENSE) and Internal Compensation
      6. 7.3.6  Voltage Feedforward
      7. 7.3.7  Pulse-Width-Modulation (PWM) Control
      8. 7.3.8  Overcurrent Limiting
      9. 7.3.9  Overvoltage Protection
      10. 7.3.10 Thermal Shutdown
  8. 8 Application Information
    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  Custom Design With WEBENCH® Tools
        2. 8.2.2.2  Boost Capacitor (BOOT)
        3. 8.2.2.3  Switching Frequency
        4. 8.2.2.4  Input Capacitors
        5. 8.2.2.5  Output Filter Components
          1. 8.2.2.5.1 Inductor Selection
          2. 8.2.2.5.2 Capacitor Selection
        6. 8.2.2.6  Output Voltage Setpoint
        7. 8.2.2.7  Boot Capacitor
        8. 8.2.2.8  Catch Diode
        9. 8.2.2.9  Output Voltage Limitations
        10. 8.2.2.10 Internal Compensation Network
      3. 8.2.3 Application Curves
  9. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Examples
    3. 9.3 Thermal Calculations
  10. 10デバイスおよびドキュメントのサポート
    1. 10.1 デバイス・サポート
      1. 10.1.1 デベロッパー・ネットワークの製品に関する免責事項
    2. 10.2 開発サポート
      1. 10.2.1 WEBENCH®ツールによるカスタム設計
    3. 10.3 ドキュメントの更新通知を受け取る方法
    4. 10.4 コミュニティ・リソース
    5. 10.5 商標
    6. 10.6 静電気放電に関する注意事項
    7. 10.7 Glossary
  11. 11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

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted) (1)(2)
VI Input voltage range VIN –0.3 V to 40 V(3)
BOOT –0.3 V to 50 V
PH (steady-state) –0.6 V to 40 V(3)
ENA –0.3 V to 7 V
BOOT-PH 10 V
VSENSE –0.3 V to 3 V
PH (transient < 10 ns) –1.2 V
IO Source current PH Internally Limited
Ilkg Leakage current PH 10 μA
TJ Operating virtual-junction temperature range –40°C to 150°C
Tstg Storage temperature –65°C to 150°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.
(3) Approaching the absolute maximum rating for the VIN pin may cause the voltage on the PH pin to exceed the absolute maximum rating.