3
\$\begingroup\$

This is from an IP camera PTZ (KKMOON). It has 5 pins and says: "FA2J6K".enter image description here

It has the following voltages: enter image description here

I.A says it could be: "xc6221" but pin out are wrong. Also "RT9092" but again wrong pinout.

As far as I can see is:

  • pin 1 is VOUT = about 2.8 V
  • pin 2 is GND = 0 V
  • pin 3 is ??? SW? (a lot of switching when I see thru the oscilloscope: 600~1000 kHz) 3.4 V
  • pin 4 is VIN = 5.1 V
  • pin 5 is FB? = 1.0 V aprox.

I have no schematic, but it keeps restarting every 50 seconds, so I want to know if either it's the regulator or a capacitor that is bad. The SoC (I guess) is the squared IC on right top side, and it gets hot: 57ºC after 2 minutes.

\$\endgroup\$
1
  • 1
    \$\begingroup\$ Please include a zoomed in photo of the actual IC. \$\endgroup\$ Commented yesterday

1 Answer 1

Reset to default
4
\$\begingroup\$

It is a FP6381AS5CTR, High Efficiency 1.5MHz, 1.2A, Synchronous Step-Down Regulator. FP6381AS5CTR

\$\endgroup\$
3
  • \$\begingroup\$ Thank you Adam, it matches perfectly. Just curious, how did you recognize it? Is there a webpage where I can find SMD component equivalences to find out? \$\endgroup\$ Commented 15 hours ago
  • \$\begingroup\$ I dont know If I may ask you again. I missed one more IC it's similar but as 6 pins: "FA42QK". \$\endgroup\$ Commented 4 hours ago
  • 1
    \$\begingroup\$ Panamanian, you need to ask a new question and attach a photo. Also, describe your problem. \$\endgroup\$ Commented 3 hours ago

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.