it's the other way around. You design PMIC for a given CPU, not designing CPU for a given PMIC(but in Apple case, the engineers can work closely together to come up with something balance).

I always wondered how to gauge how effective Apple's Dialog carveout was, in terms of was it just instant PMIC department or even effective at building a foundation for them? Given their long relationship, I would think it might be pretty seamless.

I assume Apple probably do that more than I know, it is just interesting that their vertical acquisition history feels the most boring and the most interesting.

At least looking from the outside, it feels like relatively small pieces develop into pretty big differentiators, like P.A. Semi, Intrinsity and Passif paving the way to their SoCs.