What the 65V input and 1MHz switching mean for the BOM
The 65V maximum input voltage lets the controller sit directly on 12V, 24V, or 48V automotive buses without a pre-regulator — useful for truck, bus, and off-highway vehicle lighting where the battery rail can spike well above nominal. The 1MHz fixed switching frequency keeps the inductor and output capacitor small, which shrinks the PCB footprint in space-constrained headlamp or tail-light modules. Because the controller does not integrate internal switches, the external MOSFET and sense resistor selection determines the actual LED current capacity; the controller itself handles the loop compensation and dimming interface.
Temperature grade and deployment
Rated for -40°C to 125°C operation, the MAX20097AUI/V+ suits engine-bay and exterior lighting. The 28-TSSOP-EP package with exposed pad helps pull heat into the PCB ground plane.
Sourcing and lifecycle
The MAX20097AUI/V+ carries an active lifecycle status and is ROHS3 compliant.
