JAJSPC6 November   2023 TPS61377

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 VCC Power Supply
      2. 7.3.2 Enable and Programmable UVLO
      3. 7.3.3 Soft Start
      4. 7.3.4 Switching Frequency
      5. 7.3.5 Programmable Inductor Peak Current Limit
      6. 7.3.6 Shut Down
      7. 7.3.7 Overvoltage Protection
      8. 7.3.8 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation
      2. 7.4.2 Forced PWM Mode
      3. 7.4.3 Auto PFM Mode
  9. 8 Application and Implementation
    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 Setting Output Voltage
        2. 8.2.2.2 Inductor Selection
        3. 8.2.2.3 Bootstrap Capacitor Selection
        4. 8.2.2.4 Input Capacitor Selection
        5. 8.2.2.5 Output Capacitor Selection
        6. 8.2.2.6 Loop Stability
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
        1. 8.4.2.1 Thermal Considerations
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 サード・パーティ製品に関する免責事項
    2. 9.2 ドキュメントの更新通知を受け取る方法
    3. 9.3 サポート・リソース
    4. 9.4 Trademarks
    5. 9.5 静電気放電に関する注意事項
    6. 9.6 用語集
  11. 10Revision History
  12. 11Mechanical, 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

7.3.1 VCC Power Supply

The internal LDO of TPS61377 outputs a regulated voltage of 4.8 V with 10-mA output current capability. When the input voltage at the VIN pin is below 5.25 V, the internal LDO is powered by the VOUT pin, when the input voltage at the VIN pin is above 5.5 V, the internal LDO is powered by the VIN pin. A ceramic capacitor is connected between the VCC pin and AGND pin to stabilize the VCC voltage and also decouples the noise on the VCC pin. The value of this ceramic capacitor should be above 1 µF. A ceramic capacitor with an X7R or X5R grade dielectric with a voltage rating higher than 10 V is recommended.