SLVAF95 april 2023 TPS7H5001-SP
Choosing a switching frequency has a trade-off between efficiency, bandwidth, and size. Higher switching frequencies have larger bandwidth and a smaller size, but a lower efficiency than lower switching frequencies. A switching frequency of 500 kHz was chosen because space-grade materials for transformers can increase in size due to generated heat above this value. This makes it so the chosen frequency allows the converter to have as small of a magnetic field as possible. The timing resistor was then chosen to be 204 kΩ.