TPS543620: TPS543620 input current RMS

Hi Jayden,

The above equation is a simplification to first order of equation 3 in:

https://www.ti.com/lit/an/slyt670/slyt670.pdf

I don’t have the derivation details, but should be possible to derive it from standard rms calculation principles considering the pulsating current waveform in the input capacitor.

Hope this helps,

Regards,

Yitzhak Bolurian

Hi Bolurian, it helps, thanks.