The data sheet is not very informative about the right value of the FB capacitor..
Please let me know under below listed conditions the most appropriate values or the min/max values of the C fb when the FB pin is looking into 4Kohm
application values
Vi = 3.5 to 5V
Vout = 1v8 or 3v3
Iout =< 250mA
Impedance on FB on= 4kohm
Value of Feedback capacitor??
