SLVSI34A April   2025  – June 2025 TPS61372L

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
    6. 5.6 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 Undervoltage Lockout
      2. 6.3.2 Enable and Disable
      3. 6.3.3 Error Amplifier
      4. 6.3.4 Bootstrap Voltage (BST)
      5. 6.3.5 Load Disconnect
      6. 6.3.6 Overvoltage Protection
      7. 6.3.7 Thermal Shutdown
      8. 6.3.8 Start-Up
      9. 6.3.9 Short Protection
    4. 6.4 Device Functional Modes
      1. 6.4.1 Operation
      2. 6.4.2 Auto PFM Mode
      3. 6.4.3 Forced PWM Mode
      4. 6.4.4 Mode Selectable
  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
        1. 7.2.2.1 Custom Design With WEBENCH® Tools
        2. 7.2.2.2 Setting the Output Voltage
        3. 7.2.2.3 Selecting the Inductor
        4. 7.2.2.4 Selecting the Output Capacitors
        5. 7.2.2.5 Selecting the Input Capacitors
        6. 7.2.2.6 Loop Stability and Compensation
          1. 7.2.2.6.1 Small Signal Model
        7. 7.2.2.7 Loop Compensation Design Steps
        8. 7.2.2.8 Selecting the Bootstrap Capacitor
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
        1. 7.4.2.1 Thermal Considerations
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Third-Party Products Disclaimer
      2. 8.1.2 Development Support
        1. 8.1.2.1 Custom Design With WEBENCH® Tools
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

6.4.1 Operation

In light load condition, the TPS61372L can be configured at Auto PFM or Forced PWM. At Auto PFM operation, the switching frequency is lowered at light load and features higher efficiency, while for Forced PWM operation, the frequency keeps constant across the whole load range.