SLVUEB6 October   2026

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Setup
      1. 2.1.1 Measuring Inductor Current
      2. 2.1.2 PWRGD Supply
      3. 2.1.3 Inverting Buck-Boost Configuration
    2. 2.2 Best Practices
  7. 3Implementation Results
    1. 3.1 Evaluation Setup
    2. 3.2 Performance Data and Results
  8. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  9. 5Compliance Information
    1. 5.1 Compliance and Certifications
  10. 6Additional Information
    1.     Trademarks
  11. 7References

2.1.2 PWRGD Supply

The TPS7H4203-SEP PWRGD pin is open-drain and therefore requires a pullup to a voltage ≤5.5V. When jumper J3 is populated, on-board regulation provides a pullup voltage of 1V to 3.5V (depending on the input voltage used) to the PWRGD pin of the device. To bypass the on-board regulation and use an external power supply for the PWRGD pullup, jumper J3 and 0Ω-resistor R2 can be removed. This disables the on-board regulation and supply from VIN, allowing an external supply to be provided from the test point "PWRGD_SUP". Make sure the voltage provided to PWRGD_SUP is compliant with the recommended operating voltage range of the PWRGD pin as found in the device datasheet. Do not insert jumper J3 when R2 is depopulated.