TIDUC56 March   2022

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   Design Images
  6. 1System Description
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Features
    4. 2.4 System Design Theory
  8. 3Hardware Requirements, Test Setup, and Test Results
    1. 3.1 Hardware Requirements
    2. 3.2 Test Setup
    3. 3.3 Test Results
  9. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
      3. 4.1.3 PCB Layout Recommendations
        1. 4.1.3.1 Layout Prints
      4. 4.1.4 Altium Projects
      5. 4.1.5 Gerber Files
      6. 4.1.6 Assembly Drawings
    2. 4.2 Documentation Support
    3. 4.3 Support Resources
    4. 4.4 Trademarks
  10. 5About the Author

Highlighted Features

The TPS629210-Q1 is a high efficiency, small and flexible synchronous step-down DC/DC converter that is easy to use. A selectable switching frequency of 2.5-MHz or 1.0-MHz allows the use of small inductors and provides fast transient response. The device supports high output voltage accuracy of -1.5% and +1.1% across temperature range (-40°C to 150°C) using VSET feature. The wide input voltage of 3-V to 17-V supports a variety of nominal inputs, like 12-V supply rails, single-cell or multi-cell Li-Ion, and 5-V or 3.3-V rails.

The TPS629210-Q1 provides a MODE/S-CONF input to set the internal/external feedback, switching frequency, output voltage discharge and auto PFM/PWM or forced PWM operation. To maintain high efficiency at light load, auto PFM/PWM should be selected. Additionally, to provide high efficiency at very small load, the device has a low typical quiescent current of 4-μA. If enabled AEE mode, the device provides automatic efficiency enhancement across VIN, VOUT and load current. The device is available in small 8-pin SOT583 package.