SLUUBC0A December   2015  – August 2021 TPS548A20

 

  1.   Trademarks
  2. Introduction
  3. Description
    1. 2.1 Typical Applications
    2. 2.2 Features
  4. Electrical Performance Specifications
  5. Schematic
    1. 4.1 8
  6. Test Setup
    1. 5.1 Test Equipment
    2. 5.2 Recommended Test Setup
  7. Configurations
    1. 6.1 Switching Frequency Selection
    2. 6.2 Mode Selection
    3. 6.3 VDD Pin Supply Selection
  8. Test Procedure
    1. 7.1 Line and Load Regulation and Efficiency Measurement Procedure
    2. 7.2 Control-Loop Gain and Phase-Measurement Procedure
    3. 7.3 List of Test Points
    4. 7.4 Equipment Shutdown
  9. EVM Assembly Drawing and PCB Layout
  10. Bill of Materials
  11. 10Revision History

Line and Load Regulation and Efficiency Measurement Procedure

  1. Set up the EVM as described in Section 5 and Figure 5-2.
  2. Ensure the load is set to constant-resistance mode and to sink at 0 ADC.
  3. Ensure all jumper setting are configured as shown in Section 6.
  4. Ensure the jumper provided in the EVM shorts on J2 before VIN is applied.
  5. Increase VIN from 0 to 12 V. Use V1 to measure input voltage.
  6. Remove the jumper on J2 to enable the controller.
  7. Use V2 to measure the VOUT voltage.
  8. Vary the load from 0 to 10 ADC, VOUT must remain in load regulation.
  9. Vary VIN from 8 to 14 V, VOUT must remain in line regulation.
  10. To disable the converter, place the jumper on J2.
  11. Decrease the load to 0 A
  12. Decrease VIN to 0 V.