Dear Team
The customer use equation (1) to calculate the switching frequency.
But different from the value of capture's waveform. Could you help explain the different frequency?
The spec is : Vin=54V，Vo=3.3V、Io=122mA、L=330uH、RT=191k ohm
For example, the FSW calculated by the circuit design should be about 135KHZ. If the current set by the electronic load simulation setting is 0.122A during the measurement, the Switching frequency will be about 163KHz.
The switching frequency is 163kHz.
Many thanks
Denny
