There is no "single IC" solution, the power rating is orders of magnitude too high.
That system will be handling power input in excess of 4000 Watts - into the range of industrial welding machines and too great a power for normal domestic outlets.
It is a very complex and specialised design, which in a DIY version is very likely to destroy many expensive parts during its development and testing!
This is a commercial PSU with similar ratings, around 170A @ 28V:
(Many "24V" PSUs are adjustable up to 28V).
They are almost 500mm long and weigh around 10Kg!
This the an interior view of a similar but slightly lower power one:
I've been designing electronics as a profession for over 40 years, and I would not consider trying to design anything comparable - it's a very specialised field, and you could well get through many thousands of pounds worth of parts before ending up with a workable product.
It's worthwhile for companies that will be mass-producing them, but not otherwise!