Hi,
As most people these days, I'm searching the net for alternative parts. And seriously...
I'm looking for a DC DC step up converter, something to replace the TPS61221. There's an abundance of devices that have the same exact functionality, some with slightly different parameters (works from a higher voltage, lower/higher currents, that sort of thing). Like, there's MAX1722, LTC3525D-3.3, TPS61261, about a gazilion devices from Torex, stuff from Microchip... all battery input, +3V3 fixed output. And yeah, some have different packages, but are compatible enough that you could make a footprint that accepts more of them or even you could even hack a UQFN-6 onto an SC-70 footprint. Not pretty, but would work. If only...
The damn things have the same pins, same functions, same requirements, some even have the same packages, but different pinouts. Is this intentional or simply random? I can see one layout being optimal for EMI/EMC, but since there's an abundance of them, I'm guessing that there's no one layout to rule them all.
If there was an industry standard like there's for op amps that would ease my current headache considerably. But noooo...
Sorry, had to vent.
David