LTC3225

hii ' i am planning on using the LTC3225  and i have a question 

on the typical application there is circuit that uses the LTC3225 with an  LTC4412

and if i understand right the circuit : as long there is 5v on VIN then Q1 is disconnected and Q2 is connected . and if the main voltage goes down then Q1 mosfet connects the super capacitors to the output as aback up .

am i right :) ??

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