SLUUD01 December   2024

 

  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
    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 TPSM84338 is a single, PCM control mode, synchronous buck module requiring a very low external component count. The TPSM84338 synchronous buck converter used in the EVM has the following features:

  • 3.8V to 28V input voltage range
  • 0.6V to 1V output voltage range
  • Support 3A continuous output current
  • Non-latched protections for OTP, OCP, OVP, UVP, and UVLO
  • 0.6V±1.0% output voltage accuracy
  • Selectable switching frequency of 200kHz and 2200kHz
  • Selectable Adjustable Soft-start time/PG function
  • 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' TPSM84338 evaluation module (EVM). The TPSM84338 is designed to help user easily evaluate and test the operation and functionality of the TPSM84338. 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