SLVUCK8 September   2022

 

  1.   TPS56C231LEVM 12-A, Regulator Evaluation Module
  2.   Trademarks
  3. 1Introduction
  4. 2Performance Specification Summary
  5. 3Modifications
    1. 3.1 Output Voltage Setpoint
    2. 3.2 Adjustable UVLO
  6. 4Test Setup and Results
    1. 4.1 Input and Output Connections
    2. 4.2 Start-Up Procedure
    3. 4.3 Start-Up
    4. 4.4 Shutdown
    5. 4.5 Output Voltage Ripple
  7. 5Board Layout
    1. 5.1 Layout
  8. 6Board Profile, Schematic, and List of Materials
    1. 6.1 Board Profile
    2. 6.2 Schematic
    3. 6.3 List of Materials
  9. 7References

4.2 Start-Up Procedure

  1. Ensure that the J3 (Enable control) pins 1 and 2 are shorted to shunt EN to GND, disabling the output.
  2. Apply appropriate input voltage to VIN (J1-2) or TP2 and GND (J1-1) or TP4. Note that the board cannot support hot plug-in. Connect the input lines between J1 and external power source first before turning on the power source.
  3. Disconnect J3 (Enable control) pins 1 and 2 (EN and L). Ensure that pins 2 and 3 (EN and H) are shorted, then the output can be enabled.
  4. Apply the loading to VOUT (J2-1) or TP7 and GND (J2-2) or TP10.