Available Power For Expansion Boards - ARM MPS3 Technical Reference Manual

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.
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.
Power rail Max load Comment
3V3
5V
12V
User‑links on the board select 3V3 or 5V digital I/O operation. See
interfaces on page 2-43
100765_0000_04_en
Power rail Voltage
12P0V
3P3VAUX
3P3V
FMCVADJ 1V2/1V5/1V8 4A
1A
Maximum current available for both Shields, or all four Pmod expansion boards.
Includes digital I/O reference IOREF.
1A
Maximum current available for both Shields, or all four Pmod expansion boards.
Includes digital I/O reference IOREF.
0.5A
Maximum current available for both Shields, or all four Pmod expansion boards.
Includes digital I/O reference IOREF.
Note
for information on the digital I/O user‑links.
Copyright © 2017–2020 Arm Limited or its affiliates. All rights
Non-Confidential
Max load Comment
12V 1A
3V3 standby 20mA
3V3 2.5A
reserved.
B Specifications
B.1 Available power for expansion boards
Table B-1 FMC-HPC power
-
For FMC EEPROM only
-
Other voltages are not supported
Table B-2 Shield and Pmod power
2.16 Arduino Shield and Pmod
Appx-B-89