DC resistance and current limits
The LPS3015-473MRC is a 47 µH shielded ferrite-core inductor rated for 400 mA continuous current, with a saturation current of 390 mA (cite:,). The 1.55 Ohm maximum DCR means the I²R loss at full rated current is about 248 mW — a modest thermal rise in the 2.95 mm × 2.95 mm footprint, but the temperature derating curve should be checked if ambient exceeds 85 °C (cite:,).
AEC-Q200 qualification and operating range
The self-resonant frequency of 17 MHz is well above the typical 100 kHz test frequency, so the inductor behaves as a pure inductance in switching regulators up to a few MHz (cite:,).
Package and board-fit
The ferrite core and full shielding minimize radiated EMI into nearby analog or RF traces — a common headache when routing a buck converter near a sensor front-end (cite:,).