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LT8228 Parallel schematic review request

Category: Hardware
Product Number: LT8228EFE

Dear Sir/Madam, 

I request a design review of the circuit that shares the LT8228 two IC.

1. What are the concerns when making a PCB One board?

2. BIAS and SYNC are one board, so I don't want to connect them.
(Ishare, DXRM is connected)

3. Please review if the resistance value changes are correct
(Buck input - 13~15V , Buck output - 12.5V/30A @2 IC   
Boost out - 14.4V / 50A@2 IC, Boost Input - 9~13V)

4. Should I use LTC6902 if I use 2 LT8228 in parallel?