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Recommended Alternative for 12V Step-Up Voltage Regulator U3V12F12

Hi folks,

I am looking for a 5V(USB) -> 12V step-up regulator for an Assistive Technology project. Your 12V Step-Up Voltage Regulator U3V12F12 seems to be perfect, and I have one on order to try it out.

However, it’s status is “not recommended for new designs” and I’ve read what that means, and I don’t see a good alternative on your site that is recommended. Can you point me in the right direction?

My current needs are low (appx 50mA @ 12V) and I have very little room, so this tiny converter is kind of perfect. I realize I might need a 33uF cap but even with that this will fit on the board I’m making.

The only alternative I’ve found on your site is the much larger U3V70F12 (which is also 4x the price).

I am OK with an answer of “we will be coming out with a replacement before we kill that product” (I trust you), but would hate to design a product and then find I have to redesign it in a year…

Bill Binko

Hi, Bill.

Sorry for my delayed reply. Unfortunately, the main chip on that regulator got discontinued, which is the reason for the NRND status. We should still be able to make tens of thousands of units with the last of the components we ordered, which I expect to last us around a year. It’s difficult to forecast since we are trying to move people away from this product, though as you’ve noticed, we do not have a good direct replacement. We will be working on that over the coming months, and small and low cost is definitely on our requirements list. What kind of input voltage range do you need?

- Jan

I’m actually developing an adapter that allows a (very expensive, for no good reason) power chair joystick to be used as general input into a microcontroller. That allows for using it as a mouse, gaming controller, drone controller, etc. My charity (ATMakers) is working with another (AbleGamers) and supporting a third (WarFightersEngaged) to make this happen

You can follow along here: https://www.facebook.com/groups/ATMakers/permalink/742926762785432/

As for our requirements, we need very little for this project. The joysticks require 12V and only draw about 15mA(!). So, this little chip is perfect.

Our straight-up requirements for a replacement would be mainly the footprint - it needs to fit on an Adafruit Feather easily - and easy of installation (the three pin header is great).

As for cost, I think staying under $5 at qty 10 would be fine for our use.


I didn’t answer your question! We mainly expect USB input, but would love to be able to source from the LiPoly battery. So, I suppose 3.5-6V as input?