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  • High Power Density 12-Vin, 3.3-Vout, 1-A Buck Converter Reference Design

    • TIDUC56 March   2022

       

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  • High Power Density 12-Vin, 3.3-Vout, 1-A Buck Converter Reference Design
  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
  11. IMPORTANT NOTICE
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DESIGN GUIDE

High Power Density 12-Vin, 3.3-Vout, 1-A Buck Converter Reference Design

Description

TIDA-050056 is a 5-V to 17-V input voltage buck converter reference design which is intended for applications that have a very limited design space. Featuring the TPS629210-Q1 buck converter, the reference design steps down the input voltage to 3.3-Vout and is capable of delivering up to 1-A of load with high efficiency and low quiescent current. The inductor used in this design is a 1.5-μH inductor with about 138-mΩ DCR. The total solution size including all external components is 20-mm2. This design delivers highly efficient DC/DC conversion and small solution size with the lowest operating quiescent current (IQ) in the industry. The same design is applicable to the TPS629210 device which is pin to pin compatible with TPS629210-Q1.

Resources

TIDA-050056 Design Folder
TPS629210-Q1 Product Folder
TPS629210 Product Folder
Ask our TI E2E™ support experts

Features

  • Small total solution size of 20-mm2
  • 50-mA/mm2power density
  • 5-V to 17-V input voltage
  • Up to 1-A continue output current
  • Low IQ: 4-μA typical
  • Total system voltage accuracy of -1.5% and +1.1% across temperature range (-40°C to 150°C)
  • Operating junction temperature: -40°C to 150°C
  • DCS-Control™ topology with 100% duty-cycle mode

Applications

  • ADAS and Infotainment
  • Telecom and Wireless infrastructure
  • Factory Automation and Control
  • Engineering Smarter Appliances
  • Building Automation
  • Grid Infrastructure
  • Retail Automation and Payment
  • Wireless infrastructure

 

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