REGISTER | LOGIN
Home    Bloggers    Blogs    Article Archives    Messages    About Us   
Tw  |  Fb  |  In  |  Rss
Abhinay Patil

Rarely Asked Questions—143: Burned by Low Power? When Lower Current Consumption Can Get You Into Trouble

Abhinay Patil
Victor Lorenzo
Victor Lorenzo
7/21/2017 11:51:48 AM
User Rank
Blogger
Not seen before with linear regulators
I have faced this issue before but only with switching regulators, especially with older switching controllers that required some ripple at the output, but never seen it in linear regulators.

I suppose this would be too much asking...Abhinail, would it be possible for you to point us to some regulators that could exhibit this behaviour? K.R. Victor

50%
50%
Andy_I
Andy_I
7/19/2017 2:13:01 PM
User Rank
Artist
Linear vs switching
This is not a problem that I have heard associated with (nor seen wth) linear regulators.

Whereas, many switching regulators are prone to this problem, requiring a minimum load to be in regulation -- which makes some sense considering the binary nature of the pass device.

This is not to say that only switching regulators have this problem; but I have never seen it reported before for a linear regulator.  (Maybe it's a new symptom of newer linear regulator designs?)

50%
50%
latest blogs
GaN power element technology has found its way into a major application in the industry with the release of the Dell Latitude computer using the AirFuel standard
The first reader to guess what the image below is, with the manufacturer name and model number, will get first choice of a list of books to follow. The next five readers to do that will get their choice of the remaining books in order of who is second, third, etc.
Linear regulators are fairly simple devices and don’t have too many challenges. With that said, you can still get into trouble with them occasionally.
flash poll
educational resources
 
follow Planet Analog on Twitter
Planet Analog Twitter Feed
like us on facebook
our partners
Planet Analog
About Us     Contact Us     Help     Register     Twitter     Facebook     RSS