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I'm trying to repair a broken laptop screen and noticed this chip is getting extremely hot. I desoldered it, but I can't find a replacement for it - there is only the following marking on it: CW=EE F15

Here's a photo:

chip

I found an old listing on Aliexpress for a similar chip, but there is no information as for what this chip is:

https://www.aliexpress.com/i/4000270985731.html

There were some large inductors and capacitors around it on the board so I assume it's some kind of power chip.

The screen in question is an N156BGE-LB1: https://www.touchandscreen.de/mediafiles/Datasheets/INNOLUX/N156BGE-LB1.pdf

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1 Answer 1

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It seems to be a DC-DC converter.

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  • \$\begingroup\$ Most likely. I just don't know what the manufacturer / part number of this is, an I'm looking for a replacement. \$\endgroup\$
    – M3L
    Apr 9, 2021 at 7:34
  • \$\begingroup\$ If at least you could find the datasheet, you may find a compatible component, but it is difficult to find the datasheet. \$\endgroup\$
    – JStark
    Apr 9, 2021 at 7:35
  • \$\begingroup\$ Most probably a PMIC, like this other component from Mouser eu.mouser.com/ProductDetail/NXP-Semiconductors/… \$\endgroup\$
    – JStark
    Apr 9, 2021 at 7:53
  • \$\begingroup\$ To be clear - I'm looking for the exact same chip, or an equivalent one for replacement. I tried searching for power chips with the same package and couldn't find anything - I was hoping someone would be able to identify it. \$\endgroup\$
    – M3L
    Apr 9, 2021 at 9:07

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