MPQ4317: Request for Fsw Calculation Formula

DC-DC Power Converters
1

Hello,

I would like to know the Fsw calculation formula for the MPQ4317.
The datasheet only has a table of Fsw values based on recommended resistor values

2

Hello, welcome back to the MPS forums!

While the datasheet for this IC doesn’t have a specific formula, please refer to the following graphs that map Rfreq to the actual switching frequency. This is detailed on page 15 of the MPQ4317 datasheet.

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image865×355 40 KB

Best,
Krishan