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using the MK22FX512VLL12. Does the USB (device) require 5V into VREGIN to operate? A separate 3.3V source is applied to VDD.

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using the MK22FX512VLL12. Does the USB (device) require 5V into VREGIN to operate? A separate 3.3V source is applied to VDD.

‎10-14-2014 07:06 AM
737 Views
brandontaylor
Contributor I

Does the internal transceiver only get power from VREGIN?

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‎10-14-2014 08:28 AM
606 Views
Jorge_Gonzalez
NXP Employee
NXP Employee

Hello Brandon:

Yes the transceiver gets its power from the Vreg, so you must connect VREGIN. It does not have to be 5V. according to datasheet you can wire VREGIN to VDD (3.3V)

Regards!,
Jorge Gonzalez

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