SLVUBJ0B January   2019  – June 2021 TPS56C230

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification Summary
  4. 3Modifications
    1. 3.1 Output Voltage Setpoint
    2. 3.2 Mode Selection
  5. 4Test Setup and Results
    1. 4.1  Input/Output Connections
    2. 4.2  Efficiency
    3. 4.3  Output Voltage Load Regulation
    4. 4.4  Output Voltage Line Regulation
    5. 4.5  Load Transient Response
    6. 4.6  Output Voltage Ripple
    7. 4.7  Input Voltage Ripple
    8. 4.8  Loop Characteristics
    9. 4.9  Start-Up
    10. 4.10 Shut-Down
  6. 5Board Layout
    1. 5.1 Layout
  7. 6Schematic, List of Materials, and Reference
    1. 6.1 Schematic
    2. 6.2 List of Materials
  8. 7Revision History

3.1 Output Voltage Setpoint

The output voltage is set by the resistor divider network of R4 (RTOP) and R6 (RBOT). R6 is fixed at 10.0 kΩ. To change the output voltage of the EVM, it is necessary to change the value of resistor R4. Changing the value of R4 can change the output voltage above the 0.6 V reference voltage VREF. The value of R4 for a specific output voltage can be calculated using Equation 1.

Equation 1. GUID-37F8AF3C-4D83-48AE-BD67-E434D360845A-low.gif