2
\$\begingroup\$

I am trying to identify this 5 pin SOT-23 regulator. It's labeled S80D (Maybe S8OD, the letter O not number 0). But a search for that top code does not come up with anything specific to it.

enter image description here

I do not recognize the logo used. It looks like a comma, or a lopsided rainbow. I have searched for the manufacturer logo on a few sites but nothing matches. Since it's not even an initial or recognizable shape, I can't even narrow it down.

No, it's not broken.

\$\endgroup\$
  • \$\begingroup\$ It is almost impossible to tell which it really is, the codes are not unique and the part might be counterfeit anyways. Try smdcode.com it tells me that it may be a rico RP103x LDO or anything compatible. The real question is: what are you planning to do with the knowledge, and if there is a better way to deal with this \$\endgroup\$ – PlasmaHH Apr 14 '16 at 8:14
  • \$\begingroup\$ @PlasmaHH I know that the top-code alone isn't that useful or unique, but combined with the package, it being a regulator, and especially having a manufacturers logo is should eventually be identifiable. The main reason I want this is because I don't recognize the manufacturer, and I would like to know it's specs (max input, if its fixed or adjustable, and if adj, the formula) \$\endgroup\$ – Passerby Apr 14 '16 at 8:30
  • 1
    \$\begingroup\$ I have found two more IC-s with this logo, one, two. But nothing more, it is maybe from a Japanese manufacturer, not certain. \$\endgroup\$ – Bence Kaulics Apr 14 '16 at 12:25
  • 2
    \$\begingroup\$ That logo seems to be used by "Nanjing Micro One Electronics Inc". \$\endgroup\$ – brhans Apr 14 '16 at 16:16
  • 1
    \$\begingroup\$ @brhans if you want to add that as an answer, with a link to their page or normal logo, I'd accept it. Since they don't have downloadable datasheets, I doubt an identification down to the part is feasible. \$\endgroup\$ – Passerby Apr 15 '16 at 5:19
1
\$\begingroup\$

cannot name the manufacturer, however on my Pro Micros and Minis (all "counterfeit Chinese knockoffs" which I would rephrase as "inexpensive and reliable open source providers from China) the regulators are labeled S2PC, S80C, S80D (micros) and S8PL (mini), all with the same manufacturer symbol. I have tested the dropout voltage and measured 240 mV at 65 mA load.

\$\endgroup\$
-1
\$\begingroup\$

It's a counterfeit 3.3v LDO, common on Chinese Arduino Pro Mini knockoffs.

Source: I have one sitting in front of me.

\$\endgroup\$
  • 7
    \$\begingroup\$ What makes it counterfeit? \$\endgroup\$ – Passerby Mar 16 '17 at 20:31

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.