When I need a MAX809 I prefer the OnSemi part over those from Maxim or NXP because the former has a much lower supply current. But I was looking at the NXP datasheet again recently, and I noticed that there's a big difference in supply current depending on package:
Compare with the OnSemi (both packages)
So for the SOT-23 that's nearly double the SC-70's value. I realize that a SOT-23 can dissipate a bit more power than an SC-70, but these values are under the same temperature conditions. The Maxim datasheet gives exactly the same figures, while OnSemi doesn't differentiate between packages.
How can this difference be explained?