Q
Four parallel capacitor 1210-X7R-6.3V-47 uF have ESR 0.0005Ω.
But the datasheet specifies that Capacitor ESR should be more
0.001Ω. Can you advise.
A
Theoretically the ESR of the multiple ceramic capacitors can get very low, even
sub milli-ohm. However, in practise, the resistance of the interconnects will
always be at least a few milli-ohms so the minimum ESR of the total capacitor
array and interconnects will be at least 1 or 2 milli-ohms.