Hi,
As far as the data sheet of the TPS62130A is concerned, the switching frequency is described as follows.
1) When FSWpin=High
Switching frequency is set to 1.25MHz
2) When FSWpin=Low
Switching frequency is set to 2.5MHz
However, when I set the input voltage = 12V and the output voltage = 1V in Webench and calculated, the result was different.
FSWpin High: Webench calculation result 0.796MHz
FSWpin Low: Webench calculation result 1.33MHz
Please let me know if there is a formula that can derive the switching frequency from the input voltage, output voltage, and FSW pin setting (high/low).
Thanks,
Astro