I'm trying to implement an Arduino MEGA board into my PCB that I'm designing and I've come across a part on the schematic, MC33269ST-5.0T3. I can't seem to find it anywhere, and it isn't on digikey. The closest I can find is this here, but that is a 3.3 volt regulator: https://www.digikey.com/product-detail/en/on-semiconductor/MC33269ST-3-3T3G/MC33269ST-3-3T3GOSCT-ND/2120818
Inspecting my Mega board that I have sitting on my desk it would appear to physically be the same package, and ON Semiconductor doesn't appear to make a 5V version in that type of casing, but I'm wondering if it is at all possible that it is a documentation error, or an obsolete part?
In any case, does anyone know where I can purchase this part, or an equivalent?