400 mA, 8 MHz — the switching frequency drives the inductor choice
The MIC23030-GYMT-TR: Switching at 8 MHz, the part lets you use a physically small inductor — typically 0.47 µH to 1 µH — which keeps the total solution footprint tight for space-constrained boards. The synchronous rectifier eliminates the external Schottky diode, so the BOM stays lean and the efficiency curve holds up across light to moderate loads.
A 2-layer board with a via array under the pad works for 400 mA; a 4-layer board gives more thermal margin. The fixed 1.8 V output means no feedback divider resistors on the board — just the inductor, input/output caps, and the part itself. That cuts two resistors and a potential noise pickup point from the layout.
Active lifecycle and compliance — no end-of-life risk for new designs
RoHS3 compliant with no exemptions — the part ships on tape and reel and meets the EU directive for lead-free soldering processes.