Author Topic: Identify FC2rJT step-down regulator SMD  (Read 1991 times)

0 Members and 1 Guest are viewing this topic.

Offline nunojpgTopic starter

  • Contributor
  • Posts: 17
Identify FC2rJT step-down regulator SMD
« on: April 09, 2019, 05:00:59 pm »
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?




 

Offline mariush

  • Super Contributor
  • ***
  • Posts: 5170
  • Country: ro
  • .
Re: Identify FC2rJT step-down regulator SMD
« Reply #1 on: April 09, 2019, 05:25:39 pm »
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
 
The following users thanked this post: nunojpg

Offline nunojpgTopic starter

  • Contributor
  • Posts: 17
Re: Identify FC2rJT step-down regulator SMD
« Reply #2 on: April 09, 2019, 05:36:44 pm »
The reference voltage is 0.8V as on that datasheet. Looks good. Thanks!
 

Online amyk

  • Super Contributor
  • ***
  • Posts: 8526
Re: Identify FC2rJT step-down regulator SMD
« Reply #3 on: April 10, 2019, 01:34:14 am »
A good way to confirm is to look at images from sellers of the part:
https://detail.1688.com/offer/590026600855.html
 
The following users thanked this post: nunojpg


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf