Reversibly transfers an adenylyl group from ATP to 4'-phosphopantetheine, yielding dephospho-CoA (dPCoA) and pyrophosphate. Does not accept 4'-phosphopantothenoylcysteine as a substrate (By similarity). (R)-4'-phosphopantetheine + ATP + H(+) = 3'-dephospho-CoA + diphosphate Inhibited by CoA. Cofactor biosynthesis; coenzyme A biosynthesis; CoA from (R)-pantothenate: step 4/5. Belongs to the eukaryotic CoaD family.