SLUUCR2 October   2023 TPSM843620

 

  1.   1
  2.    TPSM843620EVM 6-A, SWIFT™ Regulator Evaluation Module
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Background
    2. 1.2 Before You Begin
    3. 1.3 Performance Characteristics Summary
  5. 2Configurations and Modifications
    1. 2.1 Output Voltage
    2. 2.2 Switching Frequency (SYNC/FSEL Pin)
    3. 2.3 Current Limit, Soft-Start Time, and Internal Compensation (MODE Pin)
    4. 2.4 Adjustable UVLO
  6. 3Test Setup and Results
    1. 3.1  Input/Output Connections
    2. 3.2  BOM Modifications for Spins
    3. 3.3  Efficiency
    4. 3.4  Output Voltage Regulation
    5. 3.5  Load Transient and Loop Response
    6. 3.6  Output Voltage Ripple
    7. 3.7  Input Voltage Ripple
    8. 3.8  Start-up and Shutdown with EN
    9. 3.9  Start-up and Shutdown with VIN
    10. 3.10 Start-up Into Pre-Bias
    11. 3.11 Thermal Performance
  7. 4Board Layout
    1. 4.1 Layout
  8. 5Schematic and Bill of Materials
    1. 5.1 Schematic
    2. 5.2 Bill of Materials

2.3 Current Limit, Soft-Start Time, and Internal Compensation (MODE Pin)

Jumper J4 can be used to select between the current limit, soft-start time, and internal compensation options shown in Table 2-3. If the desired option is not available, change one of the resistors to the value which sets the desired option.

Table 2-3 MODE Selection
JUMPER SETTINGMODE RESISTORCURRENT LIMITSOFT-START TIMERAMP
1 to 2 pin shorted2.21 kΩHigh1 ms1 pF
3 to 4 pin shorted(1)4.87 kΩHigh1 ms2 pF
5 to 6 pin shorted11.3 kΩHigh1 ms4 pF
7 to 8 pin shorted60.4 kΩLow1 ms2 pF
(1) Default Setting