SLVUAW5A October   2016  – June 2021 TPS568215

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Before You Begin
    2. 1.2 Background
    3. 1.3 Performance Specification Summary
    4. 1.4 Modifications
      1. 1.4.1 Output Voltage Setpoint
      2. 1.4.2 Adjustable UVLO
  3. 2Test Setup and Results
    1. 2.1  Input/Output Connections
    2. 2.2  Efficiency
    3. 2.3  Output Voltage Load Regulation
    4. 2.4  Output Voltage Line Regulation
    5. 2.5  Load Transients
    6. 2.6  Loop Characteristics
    7. 2.7  Output Voltage Ripple
    8. 2.8  Input Voltage Ripple
    9. 2.9  Powering Up
    10. 2.10 Powering Down
    11. 2.11 Thermal Image
  4. 3Board Layout
    1. 3.1 Layout
  5. 4Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
  6. 5Revision History

1.4.1 Output Voltage Setpoint

The output voltage is set by the resistor divider network of R7 (R(TOP)) and R9 (R(BOT)). R9 is fixed at
10.0 kΩ. To change the output voltage of the EVM, it is necessary to change the value of resistor R7. Changing the value of R9 can change the output voltage above the 0.6-V reference voltage VREF. The value of R7 for a specific output voltage can be calculated using Equation 1.

Equation 1. GUID-3C7DCEAE-E78D-4EB5-A9CE-ADC2C83A5B43-low.gif