Using this suggestion from electronics stackexchange: https://electronics.stackexchange.com/questions/67775/driving-led-strip-from-microcontroller MOSFET datasheet: https://www.infineon.com/dgdl/irlml2502.pdf?fileId=5546d462533600a401535667f44d2602 MCU Power supply datasheet: https://www.sparkfun.com/datasheets/Components/LD1117V33.pdf Possible alternative MOSFET: https://assets.nexperia.com/documents/data-sheet/PMV20XNE.pdf Other parts: Power regulator for MCU: TLV76033DBZT (TI, SOT-23-3, 100mA) Schottky Diode power in: 757-1SS404H3F (Toschiba, SOT-323-3, 300mA, 0.38V drop) PMEG6020ER (Nexperia, SOD123W, 2A, .5V drop)