Hey guys. Trying to hook up ~140rgb apa102 rgb leds in a string to my teensy 3.2. I have seen multiple projects hook the power directly to the bottom on the teensy on the 3.3 output. (https://learn.adafruit.com/supernova-poi/wiring) I am not clear on how this pin works, does it share a common power rail with voltage input rail or does it have its own voltage regulator. On the side of the board it also has a 3.3 output, but says 250mA max, does this apply to the output pin on the bottom, because the max mA is not marked on this spot? Thanks for the long read.