Electronics > Repair
SOT23-6 with marking code LC01 or 7300
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spetros:
Hello.

I have tried to identify the following IC.

As i can see from the other components near to it  this is a bulk dc converter controller but i cannot find which one.

Thank you for any help



Vicus:
Can you identify the pin function?
Are you shure is not a linear device? Where is the coil?
spetros:
Thank you for your answer.

I am attaching another one photo of the board with some components removed.

I am sure because it takes 12V and at the outputs 5V
fzabkar:
The topology looks more like a boost converter with an output voltage of 12V. Pin #3 looks like the feedback pin, with the FB voltage being 1.0V.

  Vout = 1.0V x (100K + 9100) / 9100 = 11.99V
spetros:
Thank you for your answer.

I attach the circuit diagram of the unknown ic .
Maybe it will help to identify it.

Edit ( The diode is not shottky but a diode with marking L2V9 which is unknown too )

Also i have found the same IC but with marking AJ2hD from another same board

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