Plz help ID this component from Bose QC35 headphones

[W1ngl3t]

Hi all,

The IC on the pic is sits on the pcb of a Bose Quietcomfort 35 ii and it seems to connect to the right speaker driver. I have been unable to identify it from the markings, which is a problem as I suspect it needs to be replaced.
I've seen another one of these IC's from a different QC35 and the top three digits were different (it's '848' on this one and '582' on the other one), which leaves us with only 'NP' being common.
Any help would be appreciated!

Thanks

[jiroy]

Re: Plz help ID this component from Bose QC35 headphones

it's EUP7201-2.8/1.2UIR1 USP-6 xxx NP . Notice there are 2 voltages output in it : 2.8 and 1.2 volts .

[W1ngl3t]

Re: Plz help ID this component from Bose QC35 headphones

Much appreciated jiroy!

How did you find it, if you don't mind me asking?

[jiroy]

Re: Plz help ID this component from Bose QC35 headphones

Much appreciated jiroy!

How did you find it, if you don't mind me asking?

Welcome Friend ...
I have many Electronic parts books , real ones , not digital or online , plus some similar CDs from many major companies . They contain in their indexes a full list of illustrated type of packages , pins identification and so on .. Sometimes a little help from my backup boards and sometimes a little research online might be necessary as well , in case of newer components .

[W1ngl3t]

Re: Plz help ID this component from Bose QC35 headphones

Looks like I need to start ordering physical books...

Do you think the Torex XC6415 would be a good replacement?
https://cdn.badcaps-static.com/pdfs/...a9fee8b37c.pdf

[W1ngl3t]

Re: Plz help ID this component from Bose QC35 headphones

For ppl stumbling upon this, I've removed the component and it has 36 pins so definitely not the eup7201 LDO