Identifying an IC with markings: 0270000 DCP1227 0601

identificationintegrated-circuitmarkingspcb

I have a chip on one of my boards, and I cannot identify it. I tried differnet variations of search patterns but I cannot find it anywhere. The marking on the chip are in three rows as following:
0270000
DCP1227
0601

It seems to be 12 pins total, in groups of three pins in each corner.
chip

I am wondering if the reason I cannot find this chip is because the manufacturer was bought out or went out of business?

I suspect this to be a DC/DC converter from Burr-Brown (bought by TI back in 2000). But I could not find any information about the markings in any online document. I wonder if anyone has an old catalog with a table of product numbers and markings of BB?

Best Answer

It might be a custom IC made just for the company whose board it is on. I ran into this once without realizing it. I made an educated guess about the manufacturer, and even called them up for help. Their response was something along the lines of "This is a custom part for one of our customers. How do you have it?" I don't remember what I said in response, but I ended the conversation quickly.

If you are able to, remove the part from its pads. This will help you:

  • Check if there are any markings on the bottom of the IC.
  • Put it in a test environment to see if it does what you think it does. Be very careful with this though, as you will likely burn out the IC if you guess wrong.
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