SLVS736C February   2008  – October 2023 TPS2550 , TPS2551

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Device Comparison Table
  7. 6 Pin Configuration and Functions
  8. 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 Typical Characteristics
  9. 8 Parameter Measurement Information
  10. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Overcurrent
      2. 9.3.2 Reverse-Voltage Protection
      3. 9.3.3 FAULT Response
      4. 9.3.4 Undervoltage Lockout (UVLO)
      5. 9.3.5 ENABLE ( EN or EN)
      6. 9.3.6 Thermal Sense
      7. 9.3.7 Device Functional Modes
    4. 9.4 Programming
      1. 9.4.1 Programming the Current-Limit Threshold
  11. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Two-Level Current-Limit Circuit
      2. 10.2.2 Design Requirements
      3. 10.2.3 Detail Design Procedures
        1. 10.2.3.1 Designing Above a Minimum Current Limit
        2. 10.2.3.2 Designing Below a Maximum Current Limit
        3. 10.2.3.3 Input and Output Capacitance
      4. 10.2.4 Auto-Retry Functionality
      5. 10.2.5 Latch-Off Functionality
      6. 10.2.6 Typical Application as USB Power Switch
        1. 10.2.6.1 Design Requirements
          1. 10.2.6.1.1 USB Power-Distribution Requirements
        2. 10.2.6.2 Detail Design Procedures
          1. 10.2.6.2.1 Universal Serial Bus (USB) Power-Distribution Requirements
    3. 10.3 Power Supply Recommendations
      1. 10.3.1 Self-Powered and Bus-Powered Hubs
      2. 10.3.2 Low-Power Bus-Powered and High-Power Bus-Powered Functions
      3. 10.3.3 Power Dissipation and Junction Temperature
    4. 10.4 Layout
      1. 10.4.1 Layout Guidelines
      2. 10.4.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

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

5 Device Comparison Table

DEVICEAMBIENT
TEMPERATURE(1)		ENABLESON (2)
(DRV)		SOT23(2)
(DBV)		RECOMMENDED MAXIMUM
CONTINUOUS LOAD CURRENT
TPS2550–40°C to 85°CActive lowTPS2550DRVTPS2550DBV1.1 A
TPS2551Active highTPS2551DRVTPS2551DBV1.1 A
(1) Maximum ambient temperature is a function of device junction temperature and system level considerations, such as power dissipation and board layout. See dissipation rating table and recommended operating conditions for specific information related to these devices.
(2) Add an R suffix to the device type for tape and reel.