22 µH shielded drum core for DC-DC power rails
The Coilcraft LPS5015-223MRC is a 22 µH shielded drum core inductor in the LPS5015 series, rated for 600 mA continuous current with a saturation current of 700 mA — the 100 mA headroom means the inductor stays in its linear inductance region up to the saturation limit, but a transient exceeding 700 mA will cause a sharp inductance drop and ripple current increase.
Temperature range and self-resonant frequency
The self-resonant frequency is 31 MHz — for a buck converter switching at 1-2 MHz, the inductor's impedance remains inductive well above the switching edge, avoiding capacitive coupling that would increase ripple and EMI.