Looking generally at the 74FCT family, I saw that it's power pin should be held at \$5V \pm 5 \%\$ to be in specs. From my understanding, \$\pm5\%\$ power supplies are widely available, but are the top of the cheaply available ones.
Considering a reasonable (devoted layer) ground and power plane on a PCB, would it be reasonable to power a PCB from a 5% precise supply (at 5V) ? Or would the losses and parasitics be too much of a problem ?
If I needed a more precise voltage, how should I tackle that ?