SLVUC73B January   2022  – February 2024 TPS7H4003-SEP

 

  1.   1
  2.   TPS7H4003EVM Evaluation Module (EVM)
  3.   Trademarks
  4. 1TPS7H4003EVM Overview
    1. 1.1 Features
    2. 1.2 Applications
  5. 2TPS7H4003EVM Default Configuration
  6. 3TPS7H4003EVM Initial Setup
  7. 4TPS7H4003EVM Testing
    1. 4.1 Output Voltage Regulation
    2. 4.2 Output Voltage Ripple
    3. 4.3 Soft Startup
    4. 4.4 Transient Response to Positive and Negative Load Step (9A to 18A to 9A)
    5. 4.5 Loop Frequency Response
    6. 4.6 Setup
  8. 5TPS7H4003EVM Schematic
  9. 6TPS7H4003EVM Bill of Materials (BOM)
  10. 7Board Layout
  11. 8Support Resources
  12. 9Revision History

1 TPS7H4003EVM Overview

The TPS7H4003-SEP is a radiation hardened, 7V, 18A synchronous step-down converter with integrated high-side and low-side MOSFETs. High efficiency and efficient usage of space are achieved through low resistance MOSFETs and a current mode control implementation.

The EVM is configured in a default state to accept a 5V input but can be modified to disable or change the under voltage lock out (UVLO) protection, allowing for any input voltage from 3V to 7V. The EVM is also configured for a 1V output at a maximum peak output current of 18A. Again, the regulated output voltage can be modified by changing one resistor on the board. The TSP7H4003-SEP has a dedicated soft start, enable, and adjustable slope compensation pins providing design flexibility to meet specific application requirements.

Finally, as shown in Figure 1-1, this EVM supports a single POL channel. However, the device does support parallel operation. With four POLs operating in quadrature phases, a 72A load current can theoretically be provided.