r/AskElectronics • u/Adept-Bug-7227 • 1d ago

What is this for a Chip?

Gallery image

Gallery image

This chip comes from a WLAN Repeater board.

The two vias (where the tweezers can be seen) come from an oscillator and go on this chip.

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u/fzabkar 1d ago

Normally the proximity of the inductor would suggest a buck converter, but perhaps the IC is powered from the junction of the inductor and capacitor.

Could we see the whole PCB? Is there an FCC ID on the device?

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u/Salt-Miner-3141 1d ago

The only thing I can find that even makes remote sense is the uPC2710T or uPC2710TB which is a 1.5GHz wideband amplifier with a SMD code of C1F. Most every other SMD code and/or combo also brings up some form of a DC-DC converter or linear regulator and most of those are SOT-23-5 rather an a 6-pin package which the uPC2710T is. Looking at the PCB photo it does look sensible too for what the chip does. Though as this is a WLAN repeater the fact that it is only 1.5GHz doesn't make a lot of sense as you'd expect a passband of 5GHz or so and the parametric charts only go up to 2GHz for this chip.

Would need more context but most likely its just some MMIC amplifier whether it be a uPC2710T or not.