ENC28J60 not powering up

Other Hardware General Electronics
1

I have created a circuit board that converts 12v DC in to 3 voltages - 12v, 5v and 3.3v. The 5v is for the Arduino and the 12v is for an RFID card reader. The 3.3v is for the ENC28J60, however when I power it on, although the multimeter shows up 3.3v, the network device does not power up. I have connected it to another Arduino's 3.3v output and it works fine.

I have attached the schematic of the power supply. Any ideas what is going wrong?

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2

The ENC28J60 requires far more current than will pass through that 10K resistor. You need to add 3.3V LD regulator coming off the 5V.

If I am not mistaken, and ENC28J60 driving a standard magjack will draw over 300ma.

3

Thanks, thought as much. I am going to go for a LM1117T and see if that helps.