5.6 µH shielded ferrite — the power-rail decoupling fit
The Coilcraft LPS5015-562MRC is a 5.6 µH shielded drum core inductor in the LPS5015 series, rated for 1.1 A continuous with a saturation current of 1.6 A. The 175 mOhm max DCR sets the I²R conduction loss — at full rated current, expect about 210 mW of self-heating, which the -40 to +125°C operating range absorbs without derating in most ambient conditions. The ferrite core and full magnetic shield mean the field stays contained — adjacent traces or nearby inductors on a dense 5×5 mm pad see minimal coupling. This matters when the inductor sits next to a switching regulator's input or output cap.
Self-resonant frequency and the switching-regulator band
The self-resonant frequency is 67 MHz, well above the 100 kHz test frequency and the typical 300 kHz to 2 MHz switching range of most buck converters. The inductor behaves as a pure inductance across the regulator's operating band — the SRF only becomes a concern above 20 MHz, where parasitic capacitance starts to bypass the core. At 5.00 × 5.00 mm footprint and 1.50 mm seated height, this part fits under low-profile components or on the backside of a board where clearance is tight. The nonstandard case means the pad layout follows the datasheet footprint — no standard 5×5 mm inductor land pattern exists across manufacturers.
Active lifecycle — no end-of-life clock ticking
For designs that need tighter tolerance, a different series or a custom Coilcraft part would be needed.