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

2.1.4.1 Line and Load Regulation, Efficiency

  1. Set up the EVM as previously described.
  2. Set the load to constant resistance or constant current mode and to sink 0A.
  3. Increase input source from 0V to 24V; use voltmeter 1 to measure the input voltage.
  4. Increase EN source from 0V to 3.3V.
  5. Increase the current limit of the input supply to 12A.
  6. Using voltmeter 2 to measure the output voltage, VOUT, vary the load current from 0A to 12ADC; VOUT must remain within the load regulation specification.
  7. Set the load current to 6A (50% rated load) and vary the input source voltage from 5.5V to 24V; VOUT must remain within the line regulation specification.
  8. Decrease load to 0A. Decrease input source voltage to 0V. Decrease EN source voltage to 0V.