SLUUD53 September   2024 TPS51388

 

  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. 3Implementation Results
    1. 3.1 Performance Data and Results
      1. 3.1.1 EVM Characteristics
      2. 3.1.2 Conversion Efficiency
      3. 3.1.3 Operating Waveforms
        1. 3.1.3.1 Start-Up and Shutdown with EN
        2. 3.1.3.2 Start-Up with VIN
        3. 3.1.3.3 Load Transient Response
        4. 3.1.3.4 Output Voltage Ripple
      4. 3.1.4 Thermal Performance
  9. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
      1. 4.2.1 Multi-Layer Stackup
      2. 4.2.2 Component Drawings
    3. 4.3 Bill of Materials
  10. 5Compliance Information
    1. 5.1 Compliance and Certifications
  11. 6Additional Information
    1. 6.1 Trademarks
  12. 7Related Documentation

1.1 Introduction

The TPS51388 is a single, D-CAP3™ control mode, synchronous buck converter requiring a very low external component count. The TPS51388 synchronous buck converter used in the EVM has the following features:

  • 4.5V to 24V input voltage range
  • 0.6V to 5.5V output voltage range
  • Integrated 9.2mΩ/ 4.5mΩ MOSFET
  • Support 12A continuous output current
  • 90uA low quiescent current
  • ±1.0% output voltage accuracy at 25°C
  • D-CAP3™ for fast transient response
  • Selectable switching frequency of 600kHz and 1000kHz
  • Selectable Eco-mode™ and OOA™ mode under light load operation with dynamic change

This user's guide describes the characteristics, operation, performance, and use of the Texas Instruments' TPS51388 evaluation module (EVM). The TPS51388EVM is designed to help user easily evaluate and test the operation and functionality of the TPS51388. 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