SLVUBI1 May   2021


  1.   Trademarks
  2. 1TPS7H4002EVM-CVAL Overview
    1. 1.1 Features
    2. 1.2 Applications
  3. 2TPS7H4002EVM-CVAL Default Configuration
  4. 3TPS7H4002EVM-CVAL Initial Setup
  5. 4TPS7H4002EVM-CVAL Testing
    1. 4.1 Output Voltage Regulation
    2. 4.2 Output Voltage Ripple
    3. 4.3 Soft Start-up
    4. 4.4 Transient Response to Positive/Negative Load Step (0 A to 3A to 0A)
    5. 4.5 Input Voltage Ripple
    6. 4.6 Loop Frequency Response
    7. 4.7 Current Limiting
  6. 5TPS7H4002EVM-CVAL EVM Schematic
  7. 6TPS7H4002EVM-CVAL Bill of Materials (BOM)
  8. 7Board Layout

TPS7H4002EVM-CVAL Overview

The TPS7H4002-SP is a radiation hardened, 3-V to 5.5-V, 3-A 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 5-V input but can be modified to disable or change the undervoltage lock out (UVLO) protection, allowing for any input voltage from 3 V to 5.5 V. The EVM is also configured for a 2.5-V output at a maximum peak output current of 3 A. Again, the regulated output voltage can be modified by changing one resistor on the board. The TSP7H4002-SP has a dedicated soft start, enable, and power good pins providing design flexibility to meet specific application requirements.