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TPS7A94: RFB_PG(BOTTOM) Caculation

Zoey Wu
Expert 5855 points
Part Number: TPS7A94

Hi team,

i just can't understand the caculation of RFB_PG(BOTTOM) as the picture shows. Could u kindly explain it?

  • 0
    TI__Guru 50025 points

    Hi Zoey,

    The R_FB_PG(BOTTOM) is calculated in the second column and then plugged into the formula in the third (outlined in red) column. The choice of which R_FB_PG(BOTTOM) to use depends on the output voltage and the desired I_CL setting, as indicated in columns 1 and 4, respectively. Does that help?

    Regards,

    Nick