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Components that have not passed testing are subject to disposal. The Chinese are guilty of buying or stealing such components at the disposal stage and selling them. And it also happens that they simply take a similar case, mark it and sell it, like it will do.

I face same issue also on a cloned MICREL voltage regulator....

It seems as if voltage regulators are cloned so frequently finally.

I agree, buy components always from a sure channel ....

If you need low cost products, there are so many chinese component's producer that produce using their own technology ... but you have to accept their warranty limits....

take care,
X!

[Update]

Update

I bought a new batch which the dealer confirmed it is an original chip and gave me a guaranty to return them if they didn't work and they worked perfectly  

Huge difference in rising and falling time, signal stability and the switching frequency is very stable on 1.25Mhz not like the fake chip which the frequency is way higher than the expected value. Also the price is only 3x the fake (1.1$ vs 0.4$) I still find it cheap

Same post was deleted by you for the same reason. so why repost then delete the file yet again.

Yes the users here are a bit lack in hitting the thank you Button, but then if you need thanking maybe you need to post on Facebook.

Just check downloads and thank you on a few posts, and the people who are regular posters don't stop posting. for the lack of thank you's.

just saying.

I see it's the usual ratio of one thanks left for every thirty downloads.  Why does this forum have such a huge ratio of leechers?  Link removed.

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