JAJSI67 November   2019 TPS7A52

ADVANCE INFORMATION for pre-production products; subject to change without notice.  

1. 1 特長
2. 2 アプリケーション
3. 3 概要
   1.     Device Images
      1.      RFコンポーネントの電源
      2.      デジタル負荷の電源
4. 4 改訂履歴
5. 5 概要（続き）
6. 6 Pin Configuration and Functions
   1.     Pin Functions
7. 7 Specifications
   1. 7.1 Absolute Maximum Ratings
   2. 7.2 ESD Ratings
   3. 7.3 Recommended Operating Conditions
   4. 7.4 Thermal Information
   5. 7.5 Electrical Characteristics
8. 8 Detailed Description
   1. 8.1 Overview
   2. 8.2 Functional Block Diagram
   3. 8.3 Feature Description
      1. 8.3.1 Voltage Regulation Features
         1. 8.3.1.1 DC Regulation
         2. 8.3.1.2 AC and Transient Response
      2. 8.3.2 System Start-Up Features
         1. 8.3.2.1 Programmable Soft Start (NR/SS Pin)
         2. 8.3.2.2 Internal Sequencing
            1. 8.3.2.2.1 Enable (EN)
            2. 8.3.2.2.2 Undervoltage Lockout (UVLO) Control
            3. 8.3.2.2.3 Active Discharge
         3. 8.3.2.3 Power-Good Output (PG)
      3. 8.3.3 Internal Protection Features
         1. 8.3.3.1 Foldback Current Limit (ICL)
         2. 8.3.3.2 Thermal Protection (Tsd)
   4. 8.4 Device Functional Modes
      1. 8.4.1 Regulation
      2. 8.4.2 Disabled
      3. 8.4.3 Current Limit Operation
9. 9 Application and Implementation
   1. 9.1 Application Information
      1. 9.1.1  Recommended Capacitor Types
         1. 9.1.1.1 Input and Output Capacitor Requirements (CIN and COUT)
         2. 9.1.1.2 Noise-Reduction and Soft-Start Capacitor (CNR/SS)
         3. 9.1.1.3 Feed-Forward Capacitor (CFF)
      2. 9.1.2  Soft Start and Inrush Current
      3. 9.1.3  Optimizing Noise and PSRR
      4. 9.1.4  Charge Pump Noise
      5. 9.1.5  Current Sharing
      6. 9.1.6  Adjustable Operation
      7. 9.1.7  Power-Good Operation
      8. 9.1.8  Undervoltage Lockout (UVLO) Operation
      9. 9.1.9  Dropout Voltage (VDO)
      10. 9.1.10 Device Behavior During Transition From Dropout Into Regulation
      11. 9.1.11 Load Transient Response
      12. 9.1.12 Reverse Current Protection Considerations
      13. 9.1.13 Power Dissipation (PD)
      14. 9.1.14 Estimating Junction Temperature
   2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
10. 10Power Supply Recommendations
11. 11Layout
    1. 11.1 Layout Guidelines
       1. 11.1.1 Board Layout
    2. 11.2 Layout Example
12. 12デバイスおよびドキュメントのサポート
    1. 12.1 デバイス・サポート
       1. 12.1.1 開発サポート
          1. 12.1.1.1 リファレンス・デザイン
       2. 12.1.2 デバイスの項目表記
    2. 12.2 ドキュメントのサポート
       1. 12.2.1 関連資料
    3. 12.3 ドキュメントの更新通知を受け取る方法
    4. 12.4 コミュニティ・リソース
    5. 12.5 商標
    6. 12.6 静電気放電に関する注意事項
    7. 12.7 Glossary
13. 13メカニカル、パッケージ、および注文情報