Version 1.0
Page 34
2.15 Power Supplies
2.15.1 Voltage Rails and Sources
The UltraZed-EG SOM is powered through the Micro Header connection between itself and the end-user
carrier card.
There are five regulators that reside on the UltraZed-EG SOM that provide 0.85V, 1.0V, 1.2V, 1.8V, 2.5V,
3.3V, 5V and 0.6V power rails. These voltages are used to power the peripheral devices as well as the
UltraZed-EG SOM. Most of these regulators are powered from the end-user carrier card via the
+VIN
pins
on the Micro Headers and are expected to carry +5V or +12V to the UltraZed-EG SOM regulator inputs.
There are also four bank voltages that are supplied from the end-user carrier card to the UltraZed-EG SOM.
Bank 26
(+VCCO_HD_26
), Bank 64
(+VCCO_HP_64
), Bank 65
(+VCCO_HP_65
), and Bank 66
(+VCCO_HP_66
) voltages are generated on the end-user carrier card and connected to the UltraZed-EG
SOM via the Micro Headers. The voltage at which these banks operate is up to the end-user carrier card
design as all I/O that connect to these banks is exclusive to the Micro Headers (no on-board device is
connected to these banks).
The diagram below shows a high level depiction of the power provided by the end-user carrier card through
the Micro Headers as well as the regulators that exist on the UltraZed-EG SOM.
ULTRAZED-EG SOM
IRPS5401
IRPS5401
TPS62173
TPS51200
JX1
JX3
JX2
+VIN
+VCCO_HP_65
+VIN
+VCCO_HP_66
+VCCO_HD_26
+V
C
C
O
_P
SIO
_5
0
1
+M
G
TR
A
V
C
C
+M
G
TR
A
V
TT
+VCCO_HP_64
+P
S_
V
B
A
TT
ADP223
Figure 13
– UltraZed-EG SOM Power Solution
The table below shows the various voltage rails names on the schematic, the associated voltage for each
rail, where they are connected on the Zynq Ult MPSoC, and where the voltage originates from.