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.

• 0.807-V ±1.5% voltage reference overtemperature, radiation, and line and load regulation
• Adjustable soft start
• Adjustable input enable and undervoltage lockout (UVLO)
• Power good indicator pin
• Maximum output current of 3 A

• Point of load regulation
• Supports harsh environment applications
• Space satellite point of load supply for FPGAs, microcontrollers, data converters, and ASICs
• Space satellite payloads
• Radiation hardened applications