30-Oct-2020, Rev. 1.1
23
2.8 Power
2.8.1
Power Input
The board input voltage is through a 2.5mm/5.5mm inner/outer, center positive barrel
jack, CON2. The input voltage range is from 5V to 12 volts. The current rating of the
power supply is determined by the total expected power consumption of the project.
The default power supply sent by Avnet is a 5V, 2 Ampere power supply for general
low power I/O applications and XADC header use.
Additionally, there are 50 I/O on Bank 34, and as many as 66 I/O on Banks 35/13. At
16mA drivers and 66 I/O equates to a max current of 1.056A @ 3.3V. The PMOD
power connections are capable of sourcing 3.3V at 100mA each.
The precise current demand is based on the end-use I/O requirements and therefore
the application will determine the minimum current a power supply must source. As
shipped from Avnet, a 5V, 2 Amp or larger power supply is provided in the kit.
o
Barrel Jack Input:
5V
≥ 2
A Barrel Jack, 2.5mm inner/5.5mm outer diameter center positive
while using XADC.
o
On Board:
Filtered 5V to A5V:
•
For MicroZed Module & XADC.
>85% high-efficiency regulators for 1.8V/2.5V/3.3V @ 2.3A
•
For Module VCC
IO
Bank_34
>85% high-efficiency regulators for 1.8V/2.5V/3.3V @ 2.85A
•
For Module VCC
IO
Bank_35 and Bank 13 (7Z020 only)
Low noise LDO 1.8V @ 0.15A supply for XADC
