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lots of folks use the devkit power supplies, which tend to use Linear Tech. there is at least one with TI power, and i expect to see more Enpirion in the future
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A lot of the devkits use uModule power supplies. The analysis in this document (and LTspice files);
http://www.ovro.caltech.edu/~dwh/wbsddc/power_supply_design.pdf http://www.ovro.caltech.edu/~dwh/wbsddc/power_supply_design.zip show that these parts can easily violate the transient response requirements of Altera FPGAs. The compensation node on these controllers is not accessible, so you cannot adjust the performance of the modules.
Cheers,
Dave
Honored Contributor
