VOGONS


First post, by SSTV2

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Rank Oldbie
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Oldbie

Hello,

I have hard time identifying part value of my 8800GTXs memory power supply controller, which is marked as U501 on PCB (picture from the net):

IMG_1602.JPG

Part code on my controller is AT-9E. All I could figure out about it, that it's a 2-phase buck converter controller, specifically designed for DDRx memory power supplies.

Similar purpose IC: https://www.richtek.com/assets/product_file/R … /DS8248A-05.pdf

I'd like to order it together with some additional parts, help!

Reply 2 of 2, by nforce4max

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Rank l33t
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l33t

I see what you are trying to do but good luck as information has become scarce however scrounge around for vmod threads from the era (2007-2009) and you might get lucky.

On a far away planet reading your posts in the year 10,191.