12v fan speed controller electronic project using the LTC3600

This 12v fan speed controller electronic project is designed using the LTC3600 high efficiency, monolithic synchronous buck regulator whose output is programmed with just one external resistor. This 12v fan speed controller electronic project require few additional electronic components like: a simple operational amplifier , ant NTC and some other common electronic parts .
Input voltage required by this 12v fan speed controller circuit is around 15V DC.