SLVU392A July   2010  – January 2022 TPS53125

 

  1.   Trademarks
  2. 1Description
    1. 1.1 Applications
    2. 1.2 Features
  3. 2TPS53125EVM-599 Electrical Performance Specifications
  4. 3TPS53125EVM-599 Schematic
  5. 4Connector and Test Point Descriptions
    1. 4.1 Enable Jumpers/Switches – SW1 and SW2
    2. 4.2 Test Point Descriptions
      1. 4.2.1 Input Voltage Monitoring – TPS and TP9
      2. 4.2.2 Channel 1 Output Voltage Monitoring – TP4 and TP8 or CN1
      3. 4.2.3 Channel 2 Output Voltage Monitoring – TP6 and TP7 or CN2
      4. 4.2.4 Soft-Start Voltage Monitoring – TP1, TP2, and TP3
      5. 4.2.5 Switching Node Monitoring – TP3, TP5, and TP11
      6. 4.2.6 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 and Probe
      5. 5.1.5 Recommended Wire Gauge
      6. 5.1.6 Other Test Equipment
    2. 5.2 Equipment Setup
      1. 5.2.1 Test Procedure
      2. 5.2.2 Test Setup Diagram
    3. 5.3 Start-Up/Shutdown Procedures
    4. 5.4 Output Ripple Voltage Measurement Procedure
    5. 5.5 Equipment Shutdown
  7. 6TPS53125EVM-599 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. 7TPS53125EVM-599 Assembly Drawings and Layout
  9. 8TPS53125EVM-599 Bill of Materials
  10. 9Revision History

4.2 Test Point Descriptions

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

Table 4-1 Test Point Description
Test PointLabelUseSection
TP1TEST1Monitor Channel 1 Soft-Start VoltageSection 4.2.4
TP2TEST2Monitor Channel 2 Soft-Start VoltageSection 4.2.4
TP3GNDGround for Input VoltageSection 4.2.1
TP4GNDGround for Channel 1 Output VoltageSection 4.2.2
TP5SW1Monitor Switching Node for Channel 1Section 4.2.5
TP6GNDGround for Channel 2 Output VoltageSection 4.2.3
TP7VO2Monitor Output Voltage for Channel 2Section 4.2.3
TP8VO1Monitor Output Voltage for Channel 1 Section 4.2.2
TP9VINMonitor Input Voltage Section 4.2.1
TP10VREG5Monitor Output of VREG5 RegulatorSection 4.2.6
TP11SW2Monitor Switching Node for Channel 2Section 4.2.5
CN1VOUT1Monitor Output Voltage for Channel 1 Section 4.2.2
CN2VOUT2Monitor Output Voltage for Channel 2Section 4.2.3