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TPS65400: Current sharing on SW1 & SW2 & SW3 and SW4 are individual output

Part Number: TPS65400

Hi, I am using Current sharing on SW1 & SW2 only, not for the SW3 & SW4.

SW3 & SW4 i am using as individual output

My application is 

1. On SW1 & SW2

Vin = 12V

Vout = 1.8V(Typ) range 1.8V to 1.9V

Current = 6A Max

2. On SW3

Vin = 12V

Vout = 0.85V(Typ) range 0.80V to 0.90V

Current = 1A Max

3. On SW4

Vin = 12V

Vout = 0.85V(Typ) range 0.80V to 0.90V 

Current = 0.5A Max

Output are sequenced  through external power sequecer IC.

Is my design approach correct?

Can I do current sharing on SW1 & SW2 only and SW3  & SW4  as single-single output?