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csd18502kcs safe operating area power dissipation

Other Parts Discussed in Thread: CSD18502KCS

Dear community,

i'm going to build a regulated voltage source with a csd18502kcs Mosfet. i've read the datasheet and found the safe operating area diagramm. Worstcase: U DS=11V I Drain: 10A. 110W definitely out of the safe area.  

i have an CPU Heatsink with top mounted Fan and an internal fan-rpm control. 

is the heat sink enough to keep the mosfet alive?

Thank you all