Need help for designing a high power 175A 2v multi-phase buckconverter

Hello

I'm looking for a solution with the following specs:

Output : 175 A @ 2 V max

I was looking to use 4-phase sync buck with the Synchronous Buck NexFET™ Power Block,CSD86360Q5D.

I need to control the output average current. Thats the important variable.

The voltage i need to limit it to 2 volts. 

The power supply train would be : PFC Buck  -> 4-phase sync Buck 

Thanks in advance

Javier Ruiz Galan