The TPS7H500x-SP series (consisting of TPS7H5001-SP, TPS7H5002-SP, TPS7H5003-SP, and TPS7H5004-SP) is a family of high speed radiation-hardness-assured PWM controllers. The controllers provide a number of features that are beneficial for the design of DC-DC converter topologies intended for space applications.
https://www.ti.com/lit/ds/symlink/tps7h5001-sp.pdf