# Identification of SMD Chip Marking CWFEVA

**URL:** <https://forum.digikey.com/t/identification-of-smd-chip-marking-cwfeva/54243>\
**Category:** Integrated Circuits (ICs)\
**Tags:** power-management-pmic, part-identification\
**Created:** [May 2, 2025, 2:16am UTC](https://forum.digikey.com/t/identification-of-smd-chip-marking-cwfeva/54243 "2025-05-02T02:16:32Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![dantethemetaphor](https://avatars.discourse-cdn.com/v4/letter/d/8e7dd6/32.png) [@dantethemetaphor](https://forum.digikey.com/u/dantethemetaphor)\
**Post date:** [May 2, 2025, 2:16am UTC](https://forum.digikey.com/t/identification-of-smd-chip-marking-cwfeva/54243/1 "2025-05-02T02:16:33Z")

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I have this component im trying to identify. Looks like a buck converter chip? Markings on the chip are CWFEVA or CWFFVA but cannot find any info on those markings.

 ![WhatsApp Image 2025-05-02 at 5.15.53 AM](https://global.discourse-cdn.com/digikey/original/3X/8/3/8328a131c36ef65688b3a07f641b05320f782814.jpeg)  
 ![WhatsApp Image 2025-05-02 at 5.15.33 AM](https://global.discourse-cdn.com/digikey/original/3X/0/c/0c671272560549dcba70b1951d27bf8068ed840a.jpeg)

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**Author:** ![Karl\_1696](https://avatars.discourse-cdn.com/v4/letter/k/9de0a6/32.png) [@Karl\_1696](https://forum.digikey.com/u/Karl_1696)\
**Post date:** [May 2, 2025, 12:44pm UTC](https://forum.digikey.com/t/identification-of-smd-chip-marking-cwfeva/54243/2 "2025-05-02T12:44:05Z")

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Hello,

Unfortunately I could not come up with anything for this part.

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**Author:** ![Adam7](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/adam7/32/48093_2.png) [@Adam7](https://forum.digikey.com/u/Adam7)\
**Post date:** [May 2, 2025, 2:35pm UTC](https://forum.digikey.com/t/identification-of-smd-chip-marking-cwfeva/54243/3 "2025-05-02T14:35:23Z")

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Hi dantethemetaphor!

It is a SY8883DFC, DC-DC Converter.  
Unfortunately, I couldn’t find it on [https://www.digikey.com/](https://www.digikey.com/)  
[SY8883DFC | Silergy Corp | DC-DC Converters | JLCPCB](https://jlcpcb.com/partdetail/SilergyCorp-SY8883DFC/C3029184)

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**Author:** ![dantethemetaphor](https://avatars.discourse-cdn.com/v4/letter/d/8e7dd6/32.png) [@dantethemetaphor](https://forum.digikey.com/u/dantethemetaphor)\
**Post date:** [May 2, 2025, 9:55pm UTC](https://forum.digikey.com/t/identification-of-smd-chip-marking-cwfeva/54243/4 "2025-05-02T21:55:43Z")

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> [@Adam7](#):
>
> SY8883DFC

Thank you very much, May I ask how you even figured this out? I had suspicion it was a silergy chip, almost went with the SY8003ADFC as it had similar pinouts. Thanks alot for the help

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**Author:** ![Adam7](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/adam7/32/48093_2.png) [@Adam7](https://forum.digikey.com/u/Adam7)\
**Post date:** [May 3, 2025, 4:56am UTC](https://forum.digikey.com/t/identification-of-smd-chip-marking-cwfeva/54243/5 "2025-05-03T04:56:14Z")

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> [@dantethemetaphor](#):
>
> CWFEVA

dantethemetaphor.  
How did I figure this out?  
It’s very simple.  
In the photo I see a microcircuit in a DFN-8 case, a choke is installed next to it,  
so presumably this is a DC / DC regulator.  
The marking of this microcircuit is CWFEVA, such marking CWFxxx belongs to the SY8883DFC microcircuit.  
And of course there must be experience in electronics repair.