Hello, I have a project and want the part number "MAX17644AATE+" which is not available. I want an alternate of "MAX17644AATE+" please suggest the alternate. Many Thanks

 

There are many possible alternatives that could be proposed. What specifications are you willing to compromise on?

 

There are many possible alternatives that could be proposed. What specifications are you willing to compromise on?

I want the almost same specifications.

 

I want the almost same specifications.

That may severely limit the possible solutions. I'll get back to you if anything comes to mind.
"the almost same" indicates you have no room for compromise and that is unrealistic IMHO. Unless you are better at this than I am I think you are well and truly hosed.