I want to make my own board that will accept a 3V coin cell (Cr2032) and boost to 3.3V for a low power application.
I would like to use the LTC3525-3.3 to accomplish this, however, I read the datasheet and do not see anything about reverse polarity protection.
I've found some general schematics online using mosfets or diodes to provide reverse polarity protection, but this usually results in a voltage drop. The LTC3525 has a startup voltage as low as 0.85V which is great so that even low batteries should still work and provide long battery life. However, introducing the typical reverse polarity protection circuits will result in the voltage drop penalty. This reduces the amount of usable battery life available.
Is there some kind of reverse protection circuit without said voltage drop?