TIDT394 May 2024
This reference design uses the TPS7H5002-SP PWM controller to control a synchronous buck for a nominal 12V input to a fixed output at 5.1V, up to 15A load. The TPS7H6023-SP drives GaN FETs for a robust design in space-based applications. The output current is directly sensed for telemetry and over-current protection. This design switches at 750kHz, and achieves over 92% efficiency with output ripple below 30mV.