SLVS984B September   2009  – March 2015 TPS22946

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Detection Schemes
        1. 8.3.1.1 Overtemperature Detection
        2. 8.3.1.2 Hard-Short Detection
        3. 8.3.1.3 Moderate Overcurrent Detection
        4. 8.3.1.4 Current Limiting Mode
        5. 8.3.1.5 Fault Reporting
        6. 8.3.1.6 Power-On and Power-Off Sequence
        7. 8.3.1.7 Automatic Disable in Case of Permanent Overcurrent
      2. 8.3.2 Inrush Current Time-out Feature
      3. 8.3.3 CL Control Pin
      4. 8.3.4 Overtemperature Protection
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 On/Off Control
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

10 Power Supply Recommendations

The device is designed to operate from a VIN range of 1.62 to 5.5 V. The VIN power supply should be well regulated and placed as close to the VIN terminal as possible. The power supply must be able to withstand all transient load current steps. In most situations, using the minimum recommended input capacitance of 1 uF is sufficient to prevent the supply voltage from dipping when the switch is turned on. In cases where the power supply is slow to respond to a large transient current or large load current step, additional bulk capacitance may be required on the input.