SLVSH34A September   2023  – November 2023 TPS22999

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  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 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
    1.     44

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • YCH|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

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