http://www.lineagepower.com/oem/pdf/MDT040A0X.pdfMax efficiency at 0.6V out w/ 12V input - 84%
Max efficiency at 1.2V out w/ 12V input - 90%
Max efficiency at 1.8V out w/ 12V input - 92%
And the whopper, 1.5ms typical rise in output current from 10% to 90%. Not very responsive for such a small converter, esp for switching at 400khz.
And did you see that ripple voltage? !!!
Oh my gosh, between 8-20mVp-p at 1 volt!
It's too bad they couldn't use 2 of them at once.
It's too bad they don't have a SYNC function.
It's too bad the SYNC function couldn't be programmed to reduce ripple by interleaving.
If only there were such things.
Oh wait.....
They do have those functions.
Gee I wonder if the KnC guys noticed or it was just coinkydink
It's too bad the pdf you linked didn't include examples of how to deal with the known limitations.
Oh wait.....
All DC/DC converters have limitations.
The efficiency is not bad. It's 80+ and that's DC/DC at 1/12th supply V.
An engineer could design better given enough time and money.
But (there's always a 'but')
Not if you wanted off the shelf _and_ wanted some headroom within the $$$/time budget.
IMneverHO
25% of possible total supply voltage range for the device seems quite flexible to me.
They have V to spare if their thermal budget has any room left.
I almost forgot.
"And the whopper, 1.5ms typical rise in output current from 10% to 90%."
It's too bad they couldn't place caps around the ASIC to compensate.
Oh wait.....
Are you some kind of inductorologist with mad skillz?
I didn't notice your suggestion for a better choice.
Please include delivery time and cost savings if you do venture an opinion.
To me their DC/DC supply fits exactly their 'margin on top of margin' claim.
Thx for the link!
Time will tell
