JAJSC08E MAY   2011  – July 2018 TPS51206

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      単純化したアプリケーションの図
  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 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    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 VTT Sink and Source Regulator
      2. 7.3.2 VTTREF
      3. 7.3.3 VDD Undervoltage Lockout Protection
      4. 7.3.4 VTT Current Limit
      5. 7.3.5 Overtemperature Protection
      6. 7.3.6 Power On and Off Sequence
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power State Control
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 VLDOIN = VDDQ Configuration
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 VDD Capacitor
          2. 8.2.1.2.2 VLDOIN Capacitor
          3. 8.2.1.2.3 VTTREF Capacitor
          4. 8.2.1.2.4 VTT Capacitor
          5. 8.2.1.2.5 VTTSNS Connection
          6. 8.2.1.2.6 VDDQSNS Connection
        3. 8.2.1.3 Application Curves
      2. 8.2.2 VLDOIN Separated from VDDQ Configuration
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
  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. 11.2 ドキュメントの更新通知を受け取る方法
    3. 11.3 コミュニティ・リソース
    4. 11.4 商標
    5. 11.5 静電気放電に関する注意事項
    6. 11.6 Glossary
  12. 12メカニカル、パッケージ、および注文情報

8.2.1.2.5 VTTSNS Connection

To achieve tight regulation with minimum effect of trace resistance, a remote sensing terminal, the VTTSNS pin should be connected to the positive terminal of the VTT pin output capacitor(s) as a separate trace from the high-current path from VTT. Consider adding a low-pass R-C filter at the VTTSNS pin in case the ESR of the VTT output capacitor(s) is larger than 2 mΩ. The R-C filter time constant should be approximately the same or slightly lower than the time constant of the VTT output capacitance and ESR.

TPS51206 v11037_lusah1.gifFigure 25. R-C Filter for VTTSNS