What kind of drivers are in the solarforce 0.8-4.2V dropins?

One's on the way, but without one in front of me, I want to identify the driver and figure out where to get one by itself for a 3AAA project.

Anyone happen to know the amount of current they drive?

I have 2 of them if you can find the drivers separately please post the link. I would love to get my hands on these drivers. I did post amperage draw results at one time, but I don't have the numbers right now.

+1 re a driver source.