We have designed a board for mass production . This board has a few components on it, that works with 3v3 , such as MCU, Wi-Fi, and a few more sensors.
We used to have a battery, 3.7v to power the board directly, and later on, we have decided that we must use a regulator, because its more safe .
the regulator is
After some research, we found out that this regulator(and others) must have 1V more in its input,relative to its output .
So, using a battery pack of
3.7v lithium, will not work properly for such regulators(3.3v) , even when its charged with
We found out that logically ,connecting the battery directly (no regulator) to the board is much clever, because you can "enjoy" the battery power as long as it is
> 3.3v .
Our only concern is that we are not using a regulator, and its not healthy .
Is that a good thing to do- "professional" ?
do you think of more options,such a zener diode instead of a regulator ?