Hello,
I have problems with the switching frequency. For a switching frequency of 710 kHz, I use a 160K resistor at the RT pin. However, I only measure a frequency of about 350 kHz when I look at the ripple current. Furthermore, the voltage breaks down when I load the TPS54160 with about 100mA. I create a 24V from an input voltage of 30 to 50 VDC and would like to synchronize with 750kHz. Without Synchroninsation the power supply should clock with about 710 kHz. The synchronization does not work, although I have implemented the proposed circuit from the data sheet. I used an RC combination with 10pF and 4kohm parallel to the RT and used a 50ohm resistor to the ground. Nevertheless, I measure a frequency of 350kHz.
