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Identify FC2rJT step-down regulator SMD
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nunojpg:
I have a consumer TP-LINK Archer C20 router which comes with a 9V brick and I would like to check if I can feed it with unregulated voltages up to 15v.

This is the regulator circuit. Input 9V and output 3.3V. Any luck getting the part number to check the voltage specs?




mariush:
Maybe it's this one.. pinout seems to match and datasheet mentions FC2 as marking :

fitipower integrated technology lnc FR8204

https://datasheet.lcsc.com/szlcsc/Fitipower-Integrated-Tech-FR8204S6CTR_C172766.pdf

Low RDS(ON)Integrated Power MOSFET(170mΩ/90mΩ)
Internal Compensation Function
Wide Input Voltage Range: 4.5V to 18V
0.8V Reference Voltage
2AOutput Current
500kHzSwitching Frequency
1msSoft-StartTime
Cycle-by-Cycle Current Limit
Over-Temperature Protectionwith Auto Recovery
Under Voltage Lockout
Hiccup Short Circuit Protection
SOT-23-6 Package
nunojpg:
The reference voltage is 0.8V as on that datasheet. Looks good. Thanks!
amyk:
A good way to confirm is to look at images from sellers of the part:
https://detail.1688.com/offer/590026600855.html
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