3.3v regulator onboard:  how much power can handle

Hi all,
we all know that arduino use an voltage regulator to turn the 5v from usb (or higher from powersupply female plug) into the 3.3 pinout voltage.

I would like to know how much power (or in other way the max current, since the voltage is locked) it can be handle.

in general that kind of components can be the right efficient solution to turn >10voltage line into a lower voltage line? and usually if we consider the component out of a pcb (so no limit on the trace) how much power can it handle?

tnx :wink:

we all know that arduino use an voltage regulator to turn the 5v from usb (or higher from powersupply female plug) into the 3.3 pinout

I didn’t. I thought it used the FDDI chip to do this.
About 50mA. (my experience is limited to the Duemilanova)