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

Recommended Test Setup

GUID-D2A490B0-0547-45DA-8715-B2BBC2BB38A2-low.gifFigure 5-2 TPS548A20EVM-587 Top Layer for Test Setup

Input Connections:

  1. Prior to connecting the DC input-source, VIN, TI recommends to limit the source current from VIN to 10 A maximum. Ensure that VIN is initially set to 0 V and connected as shown in Figure 5-2.
  2. Connect the voltmeter V1 at TP1 (VIN) and TP4 (GND) to measure the input voltage.

Output Connections:

  1. Connect the load to J3 and set the load to constant-resistance-mode to sink 0 ADC before VIN is applied.
  2. Connect the voltmeter V2 at TP7 (VOUT) and TP9 (GND) to measure the output voltage.