JAJSCE8B July   2016  – October 2018 TPS61230A

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      代表的なアプリケーション
      2.      効率
  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
    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 Startup
      2. 8.3.2 Enable and Disable
      3. 8.3.3 Under-Voltage Lockout (UVLO)
      4. 8.3.4 Current Limit Operation
      5. 8.3.5 Over Voltage Protection
      6. 8.3.6 Load Disconnect
      7. 8.3.7 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 PWM Mode
      2. 8.4.2 PFM Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 TPS61230A 2.5-V to 4.5-V Input, 5-V Output Converter
        1. 9.2.1.1 TPS61230A 5-V Output Design Requirements
        2. 9.2.1.2 TPS61230A 5-V Detailed Design Procedure
          1. 9.2.1.2.1 Programming The Output Voltage
          2. 9.2.1.2.2 Inductor and Capacitor Selection
            1. 9.2.1.2.2.1 Inductor Selection
            2. 9.2.1.2.2.2 Output Capacitor Selection
            3. 9.2.1.2.2.3 Input Capacitor Selection
          3. 9.2.1.2.3 Loop Stability, Feed Forward Capacitor
        3. 9.2.1.3 TPS61230A 5-V Output Application Performance Plots
      2. 9.2.2 Systems Example - TPS61230A with Feed Forward Capacitor for Best Transient Response
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  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 デベロッパー・ネットワークの製品に関する免責事項
    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

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

9.1 Application Information

The TPS61230A is designed to operate from an input voltage supply range between 2.5 V and 4.5 V with a maximum output current of 2.4 A. The device operates in PWM mode for medium to heavy load conditions and in the PFM mode at the light load currents. In PWM mode the TPS61230A converter operates with the nominal switching frequency of 1.15 MHz which provides a controlled frequency variation over the input voltage range. As the load current decreases, the converter enters into the PFM mode, reducing the switching frequency and minimizing the quiescent current to achieve the high efficiency over the entire load current range.