SLUUD90 March   2025 TPS543521

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Test Setup and Procedure
      1. 2.1.1 EVM Connections
      2. 2.1.2 Test Equipment
      3. 2.1.3 Recommended Test Setup
        1. 2.1.3.1 Input Connections
        2. 2.1.3.2 Output connections
      4. 2.1.4 Test Procedure
        1. 2.1.4.1 Line and Load Regulation, Efficiency
  8. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 PCB Layout
    3. 3.3 Bill of Materials
  9. 4Compliance Information
    1. 4.1 Compliance and Certifications
  10. 5Additional Information
    1. 5.1 Trademarks
  11. 6Related Documentation

1.1 Introduction

The TPS543521 is a single, peak current mode control, synchronous buck converter requiring a very low external component count. The TPS543521 synchronous buck converter used in the EVM has the following features:

  • 3.8V to 18V input voltage range
  • Integrated 47mΩ, 21mΩ MOSFET
  • Supports 5A continuous output current
  • 0.6V±1.0% output voltage accuracy
  • Selectable adjustable soft-start time (1 – 10ms), PG function (fixed soft-start time)
  • Selectable switching frequency of 200kHz and 2200kHz
  • Selectable Eco-mode and FCCM mode under light load operation

This user's guide describes the characteristics, operation, performance, and use of the Texas Instruments TPS543521 evaluation module (EVM). The TPS543521EVM is designed to help user easily evaluate and test the operation and functionality of the TPS543521. This user's guide includes the following:

  • Setup instructions for the hardware
  • Printed-circuit board layouts for the EVM
  • Schematic diagram
  • Bills of material
  • Test results for the EVM