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Old 11-20-2018, 09:41 PM   #1
xfox
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Lightbulb Help to identify IC on Linksys EA8500

Hello folks, recently I got wireless router Linksys EA8500, half working.
After visual board inspection I found one bad IC, cannot find anything in google,
maybe someone can help me to identify it. Looks looks it's CPU voltage regulator.
Marked as 208AB 627FL 2019 (UP8) - Voltage around IC - 0v
On other side there is another one 208AB 627FM 2080 (UP12) Voltage 1.05V
Photos in attach
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File Type: jpg IMG_20181120_222329.jpg (906.4 KB, 12 views)
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Old 11-20-2018, 10:49 PM   #2
budm
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Default Re: Help to identify IC on Linksys EA8500

208AB looks to be Dual-Buck switching regulator, the 209AB looks to be single Buck switching regulator.
I have no luck finding any info on either one of them.
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Last edited by budm; 11-20-2018 at 10:59 PM..
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Old 11-21-2018, 08:28 PM   #3
xfox
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Default Re: Help to identify IC on Linksys EA8500

I think I found similar it's SMB208ANT-2019L or SMB208A
Now I have another problem, to find it in stock.
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Last edited by xfox; 11-21-2018 at 08:46 PM..
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Old 11-27-2018, 09:51 PM   #4
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Default Re: Help to identify IC on Linksys EA8500

You might have another problem if I read this correctly it says that it digitally programmed now is that to mean that it has to be programmed before it installed
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Old 11-27-2018, 09:53 PM   #5
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Default Re: Help to identify IC on Linksys EA8500

Quote:

DIGITAL INTERFACE/NON-VOLATILE PROGRAMMING 2
The built-in serial digital I C/SMBus compatible port and built-in non-volatile programming bring several benefits to power supply design with the SMB206A/7A/8A. Many external components are eliminated that would otherwise be used to set configuration and parametric values. Additionally, the digital interface allows for quick and easy development and debug without hardware changes. Finally, after the non-volatile power-up configuration, the serial port can be used to re-program the SMB206A/7A/8A by host software after the system is running. For quick programming development and debug use Summit’s prebuilt evaluation kit including a PC- based graphical user interface (GUI).

This is what I am talking about earlier

Last edited by sam_sam_sam; 11-27-2018 at 09:55 PM..
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Old 12-07-2018, 08:06 PM   #6
xfox
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Default Re: Help to identify IC on Linksys EA8500

I think router's firmware doing that (IC programming/control), but anyway I was unable to find replacement, it's Qualcomm IC and there is no replacement, so body completely dead.
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Old 12-23-2018, 08:11 AM   #7
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Default Re: Help to identify IC on Linksys EA8500

You can try this

https://www.hkinventory.com/public/P...Code=&Qty=2562

I have not used them before
When I do an inquiry I ask if they take PayPal if they do not I will not use them
That is just me
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