The SN74LVC1G126DSFR from Texas Instruments is a single-element non-inverting buffer with 1 bit per element and 3-state output, rated 5.5V, in a 6-SON (1x1) package.
The SN74LVC1G126DCKJ from Texas Instruments is a non-inverting buffer with 1 element, 1 bit per element and a 3-state output, rated to 5.5 V in an SC-70-5 package.