SBAU227A March   2014  – June 2021 TPS56520 , TPS56720 , TPS56920 , TPS56C20

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification Summary
  4. 3Modifications
    1. 3.1 Output Voltage Set Point
    2. 3.2 Output Voltage Set Point Using I2C Interface
      1. 3.2.1 PC Preparation
      2. 3.2.2 Connect the PC
      3. 3.2.3 Voltage Scaling Procedure
    3. 3.3 Output Filter and Closed Loop Response
  5. 4Test Setup and Results
    1. 4.1 Input/Output Connections
    2. 4.2 Start Up Procedure
    3. 4.3 Efficiency
    4. 4.4 Load Regulation
    5. 4.5 Line Regulation
    6. 4.6 Load Transient Response
    7. 4.7 Output Voltage Ripple
    8. 4.8 Start Up
    9. 4.9 Shut Down
  6. 5Board Layout
    1. 5.1 Board Layout
  7. 6Schematic, Bill of Materials and Reference
    1. 6.1 Schematic
    2. 6.2 Bill of Materials
    3. 6.3 Reference
  8. 7Revision History

4.2 Start Up Procedure

Using the following procedure ensures a successful start up:

  1. Make sure that the Enable jumper JP6 is closed to shunt EN to GND, disabling the output.
  2. Apply the appropriate VIN voltage to PVIN (J1-1) and GND (J1-2).