Replacing an unknown DC-DC converter

Martin Guest #3924112
Rate this post
• ▲ useful
▼ not useful 
Hello,

i got a not working video transmitter from a friend. He used a 12V 
supply, but the part need a 5 V supply. After some measurement i found 
out that the fuse is ok, but there are three dcdc-converter which aren't 
working.
The three parts have each an inductor for filtering there outputs and 
after i desoldered it i could measure that the parts which are supplied 
ok.

Now i only need to replace the parts, but i didn't find the name of the 
IC. It is labeled with : "CB=DG", "81R".
The part has a QFN-16 case with thermal pad.

After i searched a bit and looked at some distributors i didn't find the 
part, has someone an idea what's the name of the part is ?


Regards,
Martin
Attached files:
Reply Quote Edit Move Thread sperren Anmeldepflicht aktivieren Anpinnen Delete topic Thread mit anderem zusammenführen Report post
Watch this topic

Reply

Note: the original post is older than 6 months. Please don't ask any new questions in this thread, but start a new one.

Formatting
  • [c]C-Code[/c]
  • [code]code in other languages, ASCII drawings[/code]
  • [math]formula (LaTeX syntax)[/math]
  • [[Title]] – link to an article
  • Link to another post: right-click its post ID (#8078628), copy the address, paste it into the text

More about formatting

Post long source code as an attachment, not in the text.

Your name and e-mail address

Already registered? Log in

Not shown to anyone. We send you a link; your post appears once you confirm it there.

By submitting you create a free account and accept the terms of use.