Will I be all good if the ENC28J60 was powered by 5v pin because all the 3.3v pins will be used on my pi zero
or should i get a 5V to 3.3V regulator? like this one from jaycar (https://www.jaycar.com.au/voltage-regulator-lm2936-3-3/p/ZV1650?pos=1&queryId=a2f7833715c7f965bcba607bfaf8f54b&sort=Voltage%20Regulator%203.relevance
That module should be powered with 5V. It has a regulator built into it which will converter down the supplied 5V to drive the parts of the module that need 3.3V
perfect thanks for the response.