SLVU434A February   2011  – January 2022 TPS53125 , TPS53126 , TPS53127

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Description
    2. 1.2 Application
    3. 1.3 Features
  3. 2Electrical Performance Specifications
  4. 3TPS53127EVM-614 Schematic
  5. 4Connector and Test Point Descriptions
    1. 4.1 Enable Switches (SW1 and SW2)
    2. 4.2 Switching Frequency Select Switch (SW3)
    3. 4.3 Test Point Descriptions
      1. 4.3.1 Input Voltage Monitoring (TP3 and TP9)
      2. 4.3.2 Channel 1 Output Voltage Monitoring (TP4 and TP8)
      3. 4.3.3 Channel 2 Output Voltage Monitoring (TP6 and TP7)
      4. 4.3.4 Soft-Start Voltage Monitoring (TP1, TP2, and TP3)
      5. 4.3.5 Switching Node Monitoring (TP3, TP5, and TP11)
      6. 4.3.6 5-V Regulator Output Monitoring (TP3 and TP10)
  6. 5Test Setup
    1. 5.1 Equipment
      1. 5.1.1 Voltage Source
      2. 5.1.2 Meters
      3. 5.1.3 Loads
      4. 5.1.4 Oscilloscope
      5. 5.1.5 Recommended Wire Gauge
      6. 5.1.6 Other
    2. 5.2 Equipment Setup
      1. 5.2.1 Procedure
      2. 5.2.2 Diagram
    3. 5.3 Start-Up/Shutdown Procedure
    4. 5.4 Output Ripple Voltage Measurement Procedure
    5. 5.5 Equipment Shutdown
  7. 6TPS53127EVM-614 Test Data
    1. 6.1 Efficiency
    2. 6.2 Line and Load Regulation
    3. 6.3 Output Voltage Ripple and Switching Node Waveforms
    4. 6.4 Switch Node
  8. 7TPS53127EVM-614 EVM Assembly Drawings and Layout
  9. 8Bill of Materials
  10. 9Revision History

4.3 Test Point Descriptions

Table 4-1 lists the test points, their labels, uses, and where additional information is located.

Table 4-1 TPS53127EVM-614 Test Points Description
Test PointLabelUseSection
TP1TEST1Monitor Channel 1 Soft-Start VoltageSection 4.3.4
TP2TEST2Monitor Channel 2 Soft-Start VoltageSection 4.3.4
TP3GNDGround for Input VoltageSection 4.3.1
TP4GNDGround for Channel 1 Output VoltageSection 4.3.2
TP5SW1Monitor Switching Node for Channel 1Section 4.3.5
TP6GNDGround for Channel 2 Output VoltageSection 4.3.3
TP7VO2Monitor Output Voltage for Channel 2Section 4.3.3
TP8VO1Monitor Output Voltage for Channel 1Section 4.3.2
TP9VINMonitor Input VoltageSection 4.3.1
TP10VREG5Monitor Output of VREG5 RegulatorSection 4.3.6
TP11SW2Monitor Switching Node for Channel 2Section 4.3.5
CN1VOUT1Monitor Output Voltage for Channel 1Section 4.3.2
CN2VOUT2Monitor Output Voltage for Channel 2Section 4.3.3