I'm trying to power the LN298 motor driver in order to use a 12V linear actuator. This motor driver comes with a 5V voltage regulator, so you can power a microcontroller with one power supply. The problem is that there is a 2V drop (if I supply 12V to the motor driver, only 10V is sent to the linear actuator) which makes the actuator move slower than I want it to move.
If I supply more than 12 V to the motor driver (rated for much more than 12V) the voltage regulator shuts off, so now I need another way to power my microcontroller.
I have looked into other voltage regulators, but I assume a voltage drop from 14V to 5V might create a lot of heat. I am currently learning about SEPICs and trying to find some that work for my application, which seems like the best solution I can come up with. Are there any better solutions out there?
Thank you so much!
Edit: The microcontroller I'm using is an Arduino Nano 33 BLE and I suspect the current draw to be around 25-100mA.