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cleverone

Identify Part

Question

I need help identifying this part, it was shorting on a dell XPS motherboard. Its 5 pins and has 3w=730 on top of it. 

I identified the bad part by using rosin smoke and applying current. I just dont know the type of SMD this is.

Power regulator? Switching IC?

Thank You 

unnamed.jpg

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4 answers to this question

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Defiantly a chip/switch,  but you knew that already,
There must be some kind of markings or letters and or numbers on the motherboard that you can trace,  you may need a magnifying glass to see them clearly if your eyes are like mine...lol,   anyway there may be a path etched on the motherboard leading to where the chip/switch transmits to,  these help identify where what part go's where when putting motherboards together,   these number and letter markings will be abbreviated and may give you a clue,  what is the exact model of your motherboard,  meanwhile someone here should have another clue to add.

Edited by roadrage

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Thank you for the response, its a dell XPS 13 2 in 1.  Plugged into the power adapter was creating a whole lot of heat on the board and no detection of HDD. Located this part here as the culprit. I have taken a picture of where the part goes on to the board, no real marking except that triangle with a line and block. 

unnamed (1).jpg

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I see it,  to me it looks like it zig zags away to the capital letter A for it's pathway and also to where I see P above the A,  it looks like two contact points already,  follow the marking lines a little more to see where else they touch and go.

Edit:

There may be a cluster of pathways but it may lead to the main one where it stops.

What did you use to take that picture,  it looks great ?

Edited by roadrage

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Mouser and digikey are the two sites I use to find stuff like this.  They easiest method may be to buy an old board off ebay and scavenge the part as the markings on that are likely its specs and not the part number. 

The motherboard IC layout designs are not publicly available unless one has been leaked from a builder for that company.  They are tradedmarked designs for each model and meant to be replaced as a whole, not at the IC level.  That being said if we can identify exactly what it is you can find it on those two sites I mentioned above.

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