MPM54524 application

Hello,

(1)If we adopt this architecture”Dual 10A Outputs with an External Divide”. Do these two rails operate independently? If OCP occurs on one, does it affect the other?

(2)When we adopt this architecture:”4-Phase, Single 20A Output with an Internal Divider”. Should we combine the output voltages using an inner layer, or are there alternative layout guidelines recommended? Thanks!!