lp2951 design details

Hi Vinay.

I think there's a mistake in your post.

LP2951 is 100mA output maximum...

Bye

Paolo

http://www.ti.com/lit/ds/symlink/lp2951-n.pdf

The calculation for the external compensation is not known.

I suspect that the 1Mohm and 0,002uF are required (in part) to compensate for the asymmetrical gate drive and are valid only for (or another PMOS virtually identical to) the SuperTex VP12C, with the 10kohm//0.01uF on the gate, and 220uF on the output  (i,e, sense pin). The circuit uses certain behaviour characteristics of the LP2951 that are not fully characterized or documented, so some trail-and-error would certainly be required to get to the optimum behavior id there is any variation in circuit components.

can you please provide me some equations , how to choose the capacitor here