has anyone any advice/pointers on using one AA cell to get 3v3? I have looked at chips from Linear, Maxim and Nat Semi, but before plodding down a path with one would like to hear from users of these for pitfalls recomendations etc. I want to power a little audio amplifier for headphones from the cell, and want a single AA to keep the enclosure small. any advice or pointers to other methods gratefully appreciated. regards Anthony
-- 3v3? Oh, then, you must mean an A² cell.
What current are you targeting? I'd expect there aren't many pitfalls associated with these devices. Just look for startup voltages that are compatible with low-battery conditions and efficiencies that will allow the one cell to last a while. You may be able to get a demo board for a reasonable price ($20?) from one of those companies.
Hello Anthony,
What pitfalls? Look at the TPS61xxx family from Texas. Around a Dollar in quantities.
Regards, Joerg
Thanks - I didn't even know of these parts- BTW the current I am after is about 30mA, with peaks of 70 mA with audio (probably from storage caps inductor isolated from the feedback loop output cap to preserve stability)
Does anyone know of a discreet version to save being manufacturer tied? or am I peeing in the wind? Anthony
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.