Need help finding this part. Pret

Hey everyone.

Going for a longshot here. This board is a chitu e10 lite off a resin printer. While diagnosing another issue and actually successfully fixing it I stupidly unplugged the 24v supply to the board forgetting it was on. What has now happened is the board is unresponsive. I had a little feel and did some diagnosing and this specific component labelled U16 gets very hot when I supply 24v to the mainboard. In an effort not to fork out money I have been trying to find this component online but there’s no mention of it anywhere. The component has FV4RWR etched on it. I assume it’s some kind of IC but I can’t figure out what type. Is there any way to identify it or test some values. There is another identical one on the board. I have also recently found a marking underneath the component that looks like --G-.
Any help is appreciated.

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Hello malim,

Welcome to the DigiKey TechForum.
I was unable to find anything for these markings.
Maybe one of the engineers can offer some idea of what the part may be.

Hi malim,

Welcome to the DigiKey TechForum community.

U is a generic designator for an IC chip so U8 and U16 just mean it’s a integrated circuit type of chip. The marking of the actual part is what we would have to go by to find what it actually is. However, I also found nothing with that marking FV4RWR. That package is 5-TSSOP, basically same as package SC-70-5 and also goes by SOT-353 package style. This package is very common in a lot of SMD devices but we know it’s an IC from the U marking on the board. It leads me to think it might be some kind of voltage regulator or maybe a memory chip, hard to say since that part marking does not correspond to much anywhere. Perhaps someone else might know more about this.

Some Voltage Regulators in that package as an example: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | Power Management (PMIC) | Electronic Components Distributor DigiKey

Regards,

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Does that line underneath the markings mean anything at all?

It is FP6396S5 (Product Code FV4) from FITIPOWER company.

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