A1117A is a series of low dropout three-terminal regulators with a typical dropout of 1.3V at 1A load current. Besides fixed voltage version (VOUT = 1.2V, 1.8V, 2.5V, 3.3V, 5V), A1117A has an adjustable version that can provide an output voltage from 1.25 to 12V with two external resistors.A1117A offers thermal shut down functions to assure stability of chip and power system. Trimming technique is used to guarantee output voltage accuracy within ±2%. https://www.campuscomponent.com/products/ait-semiconductor-a1117anvr-33-ic-3520-d/2208614000051433246