B.1
Available power for expansion boards
The MPS3 board supplies power to the expansion boards through the expansion connectors.
FMC-HPC power
The MPS3 board supplies power, through the FMC
‑
HPC connector, to a fitted FMC
‑
HPC board. The
following table shows the maximum current that the board can supply from each power rail.
Table B-1 FMC-HPC power
Power rail Voltage
Max load Comment
12P0V
12V
1A
-
3P3VAUX
3V3 standby
20mA
For FMC EEPROM only
3P3V
3V3
2.5A
-
FMCVADJ 1V2/1V5/1V8 4A
Other voltages are not supported
Shield expansion and Pmod expansion power
The MPS3 board supplies power to expansion Shields or Pmod expansion boards, depending on what
expansion boards are fitted. The following table shows the maximum current that the board can supply
from each power rail.
Table B-2 Shield and Pmod power
Power rail Max load Comment
3V3
1A
Maximum current available for both Shields, or all four Pmod expansion boards.
Includes digital I/O reference IOREF.
5V
1A
Maximum current available for both Shields, or all four Pmod expansion boards.
Includes digital I/O reference IOREF.
12V
0.5A
Maximum current available for both Shields, or all four Pmod expansion boards.
Includes digital I/O reference IOREF.
Note
User
‑
links on the board select 3V3 or 5V digital I/O operation. See
for information on the digital I/O user
‑
links.
B Specifications
B.1 Available power for expansion boards
100765_0000_04_en
Copyright © 2017–2020 Arm Limited or its affiliates. All rights
reserved.
Appx-B-89
Non-Confidential