JAJSOE8A November   2015  – July 2022 TPS51216-EP

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 概要 (続き)
  6. 6 Pin Configuration and 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
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 VDDQ Switch Mode Power Supply Control
      2. 8.3.2 VREF and REFIN, VDDQ Output Voltage
      3. 8.3.3 Soft-Start and Powergood
      4. 8.3.4 Power State Control
      5. 8.3.5 Discharge Control
      6. 8.3.6 VTT Overcurrent Protection
      7. 8.3.7 V5IN Undervoltage Lockout (UVLO) Protection
      8. 8.3.8 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 MODE Pin Configuration
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 D-CAP Mode
      2. 9.1.2 Light-Load Operation
      3. 9.1.3 VTT and VTTREF
      4. 9.1.4 VDDQ Overvoltage and Undervoltage Protection
      5. 9.1.5 VDDQ Overcurrent Protection
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 List of Materials
        2. 9.2.2.2 External Components Selection
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 サポート・リソース
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, 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

8.3.2 VREF and REFIN, VDDQ Output Voltage

The part provides a 1.8-V, ±0.8% accurate, voltage reference from VREF. This output has a 300-μA (max) current capability to drive the REFIN input voltage through a voltage divider circuit. A capacitor with a value of 0.1-μF or larger should be attached close to the VREF terminal.

The VDDQ switch-mode power supply (SMPS) output voltage is defined by REFIN voltage, within the range between 0.7 V and 1.8 V, programmed by the resister-divider connected between VREF and GND. (See Section 9.2.2.2.) A few nano farads of capacitance from REFIN to GND is recommended for stable operation.