Jump to content
Sign in to follow this  

Low dropout 12V voltage reg

Recommended Posts

Hi, I´m using this pcb for my okto 12V fpv gear, I have a 4S main battery to power everything there


I didn´t notice since last few days that while flying fpv, I lost fpv video. The problem is that the suggested Volt regcuts feeding to 12V at about 13.5V, very dangerous to use this voltage regulator for fpv.

I was thinking on using Linear LM 2940 12V low dropout, since it will never quit feeding the fpv gear, below a certain voltage in, it will output the same volts than it has in.

Do you know a better option than this reg (non linear more efficient) to use for this application?

Edited by Wavess

Share this post

Link to post
Share on other sites

4s->12V is rather tricky as the end voltage is identical. I think I'd go with a linear LDO too. 15->12 at nominal charge level isn't all that bad in terms of loss.

Otherwise you have the Anyvolt Micro that will take anything and turn it into anything (it will still provide 12V even if main battery voltage becomes lower than that), but watch out for the 500mA limit on both input and output.

I just use a separate 3s pack for video.

Edited by Kilrah

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this