Allegro MicroSystems introduces a new automotive, AEC-Q100 qualified single IC switching regulator that provides constant-current output to drive high-power LEDs. Allegro’s A6217 integrates a high-side N-channel DMOS switch for DC-to-DC step- down (buck) conversion. A true average current is output using a cycle-by-cycle, controlled on-time method. This new LED driver is targeted at the automotive lighting market and includes the following key applications: daytime running lights, front and rear fog lights, turn/stop lights, map lights, and dimmable interior lights.