JAJSLJ0B June   2015  – March 2021 TPS62746

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 Device Comparison Table
  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 Timing Requirements
    7. 7.7 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 DCS-Control™
      2. 8.3.2 Power Save Mode Operation
      3. 8.3.3 1mA VIN Switch
      4. 8.3.4 Output Voltage Selection
      5. 8.3.5 Output Voltage Discharge of the Buck Converter
      6. 8.3.6 Undervoltage Lockout UVLO
      7. 8.3.7 Short circuit protection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable and Shutdown
      2. 8.4.2 Device Start-up and Softstart
      3. 8.4.3 Automatic Transition Into No Ripple 100% Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Inductor Selection
        2. 9.2.2.2 Output Capacitor Selection
        3. 9.2.2.3 Input Capacitor Selection
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 サード・パーティ製品に関する免責事項
    2. 12.2 ドキュメントの更新通知を受け取る方法
    3. 12.3 サポート・リソース
    4. 12.4 Trademarks
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 用語集
  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

9.2.2 Detailed Design Procedure

The first step in the design procedure is the selection of the output filter components. To simplify this process, #GUID-44F07587-05C7-4338-A71E-10DE4A516FE6/LCCOMB outlines possible inductor and capacitor value combinations.

Table 9-2 Recommended LC Output Filter Combinations
Inductor Value [µH](2)Output Capacitor Value [µF](1)
4.7µF10µF22µF47µF100µF
2.2√√(3)√√
(1) Capacitance tolerance and bias voltage de-rating is anticipated. The effective capacitance varies by +20% and –50%.
(2) Inductor tolerance and current de-rating is anticipated. The effective inductance can vary by 20% and -30%.
(3) Typical application configuration. Other check marks indicate alternative filter combinations.