I am thinking about using these in a few projects:
5V Step-Up/Step-Down Voltage Regulator S9V11F5
Anyone used them in the past ?
I have, and they work as advertised.
It says they can get very hot, hot enough to burn.
If you were to draw 1 amp at 8v input, do they still get hot ?
typical efficiency of over 90%
So I'd use 80% as a more conservative approximation. 20% of 3W would be 600mW so yeah, that thing will likely get intensely hot in your case. Even at >90% the device will heat up pretty badly since most of the dissipation will in fact happen in the IC, esp its built in mosfet.
You're asking 1A from a very tiny package. We've come a long way, but magic still is hard to come by.
I see magic every time I let the magic smoke out!
I put down the magic smoke stuff quite some time ago 
1 Like
This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.