The MCA Series is a monolithic control circuit containing the primary functions required for DC−to−DC converters. These devices consist of an internal . Step Down / Step Up / Inverting DC-DC Converter MCC. Apr. – Rev. – 1 -. HTC. SOP-8 PKG. DIP-8 PKG. ORDERING INFORMATION. Device. MCA/B. Jan. – Rev. – 1 -. HTC. SOP-8 PKG. DIP-8 PKG. ORDERING INFORMATION. Device. Package. MCAD. MCAGD.
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I’m trying to get an idea when some of the classic switching controller ICs were introduced because it marks the point when switchers started to become ubiquitous. If I read the available information correctly, it was Motorola now OnSemi who first made this part, and it was or is also available from competitors such as Sipex, TI, ST, Fairchild and some smaller ones I’ve never heard before.
Looking at all these cross-references knock offs?!
I couldn’t find any earlier sources, and I don’t have any early data books by Motorola on my shelves. Any sources, preferably with pdf download links, hct welcome! The edition of Motorola’s “Linear and Interface Integrated Circuits” Series D catalog contains an “Advance Information” data sheet for the MC so that is likely to be around the time of introduction.
That catalog also contains several other switching regulator ICs. Among those were MC and MC below.
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My first switching regulator circuit was around using an LM National Semiconductor which could be used as a linear or a switching hfc. This part was also available from Motorola as MC InMotorola published “Semiconductor Power Circuits Handbook” which contains several discreet switching regulator circuits.
Home Questions Tags Users Unanswered. When was it introduced? This question appears to be off-topic because it is not about electronic design.
Sometimes it’s good to have a sense of the history of electronics.
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We’ve talked about hhc tubes and even the ancient timer here before, so I don’t see this is being off topic. On thing that confuses me in the MC datasheet is why is there a uA78S40 mentioned there as well. I can’t imagine the same company adding or maybe removing a diode and an uncommitted opamp and calling the product something completely different. I’m not sure who cloned who.
Both the LM and the MC are still available!
Tut 3, 1 15 The is used by the millions in ultracheap Chinese 12V-to-5V converters. Compared to more modern switchers its performance is rather lousy, but for these manufacturers only price counts. A Aug 6 ’13 at Nowadays there share the same datasheet at ON. I don’t have too much old Fairchild stuff on the shelf. By the way, I incorrectly stated the uA78S40 and MC share the same ON datasheet; that’s not actually the case, but ntc share the same appnote: Sign up or log in Sign up using Google.
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