JAJSRB8A September   2023  – November 2023 TPS22999

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics (VBIAS = 5.5 V)
    6. 5.6  Electrical Characteristics (VBIAS = 3.4 V)
    7. 5.7  Electrical Characteristics (VBIAS = 2.3 V)
    8. 5.8  Switching Characteristics
    9. 5.9  Timing Diagrams
    10. 5.10 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 ON and OFF Control
      2. 6.3.2 Regulated Inrush Current
      3. 6.3.3 Integrated Quick Output Discharge
      4. 6.3.4 Thermal Shutdown
      5. 6.3.5 Power-Good (PG) Signal
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 ドキュメントの更新通知を受け取る方法
    2. 8.2 サポート・リソース
    3. 8.3 Trademarks
    4. 8.4 静電気放電に関する注意事項
    5. 8.5 用語集
  10. 9 Revision History
  11. 10Mechanical, 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

6.3.2 Regulated Inrush Current

Depending on the rise time at power-up, output load capacitances can cause large inrush currents that are limited only by parasitic resistance and inductances present in wiring and interconnections. These high currents can cause input voltage supply droop which can harm or cause malfunction in other circuits in the system.

To prevent these problems, TPS22999 regulates the inrush current(IINRUSH) to a 1-A typical during the turn-on phase. This regulation enables the system to operate reliably while maintaining a fast turn-on time.

GUID-20221115-SS0I-Q42F-VCP5-ZGVJGFHVWG8S-low.svg Figure 6-1 Regulated Inrush Current Behavior