3 MHz switching regulator for tight board budgets
The fixed 1.8 V output at 500 mA suits low-voltage rails for MCUs, RF transceivers, and sensor modules where board area is the constraint, not the load.
Temperature range and load derating
Input supply and fixed output
Input voltage range spans 2.05 V to 6 V, so the part can run from a single Li-ion cell (3.0-4.2 V) or a 3.3 V / 5 V regulated rail. The output is fixed at 1.8 V — no external resistor divider for feedback, which saves two components and one node that could pick up noise.