i am currently using the ti tps71733 ldo voltage regulator (3V3 output) and using 1uF on the inputs and outputs along with a 10nF on the bypass pin as per the ds.
i would like to be able to also use the fairchild fan2503 in the same circuit as a drop in replacement, but its datasheet wants a 2.2uF on the input side with a 1uF on output and 10nF on bypass, so the 2.2uF input cap is the question.
how important is the 2.2uF vs 1uF difference on the input?
ti tps71733 ds - http://focus.ti.com/lit/ds/sbvs068g/sbvs068g.pdf
fairchild fan2503 ds - http://www.fairchildsemi.com/ds/FA/FAN2503.pdf
thanks in advance for your expertise,
bob
i would like to be able to also use the fairchild fan2503 in the same circuit as a drop in replacement, but its datasheet wants a 2.2uF on the input side with a 1uF on output and 10nF on bypass, so the 2.2uF input cap is the question.
how important is the 2.2uF vs 1uF difference on the input?
ti tps71733 ds - http://focus.ti.com/lit/ds/sbvs068g/sbvs068g.pdf
fairchild fan2503 ds - http://www.fairchildsemi.com/ds/FA/FAN2503.pdf
thanks in advance for your expertise,
bob