Find great deals on eBay for SMD in Electrical ICs and Processors. Shop with confidence. LMSMD Specifications: Regulator Type: Standard ; Output Polarity: Positive ; Output Voltage Type: Fixed ; Package Type: TO, Other, ISOLATED. too high for the heat sinking provided, the thermal shutdown circuit takes over preventing the IC from overheating. Features n LM78L05 in micro SMD package.

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I’m looking for advise on SMD regulators. Again, thanks but please read my question. The MC is what is known as a “jelly bean” part. An isolated DC-DC converter is a really good choice and worth thinking about – more tolerant of input voltage variations high and lowand fail-safe isolated.

For this i use a voltage regulator to convert the v down. RobvdVeer Full Member Posts: I like this one because you can enter a variation in percent of the input voltage, and it automatically selects buck or boost.

Question about SMD voltage regulator to use

You can use Regulator LM cobine with zenner diode to make output stable at 5V. Anyway, back to the OP’s topic. Still have it plugged in in the car so it wouldn’t rattle around in a cup holder. The timer is another example of a jelly bean part. I choose a batch of -adj so i can get any voltage i need in future projects.


I have an Ultimaker and a 3D engraver. You’ll need quite a large package to simply dissipate the heat anyway, SMT or not. That means it has been around a long time, several different companies make compatible versions, and they are everywhere.

Question about voltage regulator to use. Now with Unlimited Eagle board sizes! Great deal, you get MC, schottky diode, and a rewindable inductor. I ran my Duemilanove for several days powered from one of these as a test. In a car application, this will give you some immunity to the variability in the sjd DC voltage.

But now i also saw other types of regulators, eg. Now i’m thinking about going SMD, i’ve ordered some lmadj.

I should be able to solder a sot by hand. A lot less heat to worry about. There are several Javascript calculators around the web. Wmd now confused whether i ordered the right parts, there are so many regulators available! Heat sink will not be an issue, my project uses only about mA.


78M05 (LM7805 SMD)

The most important spec in an automotive application is the input maximum voltage – expect the car’s 12V to have big voltage spikes on it, many LDO regulators have a poor Vin max spec and are not suitable. Or possibly an in-car USB charger which should provide a clean 5V and not take any space on your circuit board. Can you use a little lighter adapter to USB socket for your 5V source instead?

MarkT Brattain Member Posts: For an automotive project i am using a custom p project running at 5v. Question about SMD voltage regulator to use. Even with lm705 IN, there is a 7V voltage drop. Can you help me please? You might consider a switching regulator. CrossRoads on Oct 01, On my breadboard prototype i use a lm RobvdVeer on Oct 01, Test equipment, replica and original sci fi props and costume pieces, and whatever else I feel om7805 at the time.