ZHCST55A September   2023  – November 2023 TPS22999

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  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 接收文档更新通知
    2. 8.2 支持资源
    3. 8.3 Trademarks
    4. 8.4 静电放电警告
    5. 8.5 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

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6.1 Overview

The TPS22999 device is a single-channel load switch with a 7.5-mΩ power MOSFET designed to operate up to 1.5 A. The voltage range is 0.1 V to 4.5 V. The device regulates inrush current upon turn-on while providing a fast turn-on time.

The switch is controlled by an enable pin (EN), which is capable of interfacing directly with low voltage GPIO signals down to the VIH level of 0.8 V. The TPS22999 device has an integrated 10-Ω quick output discharge when switch is turned off. There is a Power-Good (PG) signal on the device that indicates when the main MOSFET is fully turned on and the on-resistance is at final value.