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1 TPS7H4003EVM Overview
The TPS7H4003-SEP is a radiation hardened, 7-V, 18-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
under voltage lock out (UVLO) protection, allowing for any input voltage from 3 V to 7 V. The EVM is also
configured for a 1-V output at a maximum peak output current of 18 A. 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
parallel operation. With four POLs operating in quadrature phases, a 72-A load current can theoretically be
provided.
1.1 Features
•
0.6-V ±1.6% voltage reference over temperature, radiation, and line and load regulation
•
Adjustable slope compensation
•
Adjustable soft start
•
Adjustable input enable and undervoltage lockout (UVLO)
•
Maximum output current of 18 A
1.2 Applications
•
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
SLVUC73A – JANUARY 2022 – REVISED AUGUST 2023
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1-1, this EVM supports a single POL channel. However, the device does support
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TPS7H4003EVM Overview
TPS7H4003EVM Evaluation Module (EVM)
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