I'm using the LTC3566 and the buck-boost converter is unstable. I would like to know if are there some design tool for the LTC3566?
An application note with one design example will give me some help too.
The datasheet (https://www.analog.com/media/en/technical-documentation/data-sheets/3566fb.pdf) don't have many informations about the feedback loop.
There is not a design tool that I am aware of. The best information that I can see is in the Closing the Feedback Loop section on pages 24 and 25 of the datasheet. I suspsect you already looked at that.
Not in LTSpice or LTPowerCAD. I'll let you know if I find anything.
Another design working example would be the demo board DC1132A that you may try. Tested to be stable.