Hi rgaddi,
The output voltage VTT(2.2V) should works with VREF(4.4V)/2. The VDDQ can be between from 1.5V to 5V.
Here VDDQ should be equal to VREF as per the below circuit:
Yes, either of those values(3.3V, 4.4V or 5V) should work for VDRV bias voltage as they fall under the recommended operating conditions of the chip.
For the last part where VDDQ = 1.35V:
MP20073 can support this as well, please refer to the below diagram, where AMD’s Zynq 7000 uses MP20073 for powering their VTT rail.
You can check your requirements on our EV20073DH-00A as well.
For more reference for the Zynq7000, kindly refer to this link:ZYNQ 7000 Reference Design
Let us know if you have any other questions.
Regards,
Adhish