Greetings,
I have a need for a small adjustable power supply to power my circuits that are not on the bench (where the lab power supply sits), or simply require a second rail. And since power supplies fascinate me, i though of designing and building my own. Unfortunately, i have no expirience designing, nor building power supplies, hence i've come to the experts

I wanted this supply to have
- High Efficiency
- Low Noise
- Small Footprint
- Powerd by 12V wall adapter or an 18V drill battery
i have selected some parts that seem to fit my needs, and i followed their datasheets as best as i could. I will attach my design bellow.
This design is definetly not final as it lacks safety features, and its dimensions will probably change to fit into an enclosure
So, have i done something wrong? is there something that can be improved ? is there something i should note ?
Thanks for your time and have a good day
*Edit : i attach the design as an image aswell :

