18. Buck Converter Inductor Selection

✅ Inductance: 22µH matches the required 22µH.
✅ Inductance tolerance: ±20% matches the required ±20% or tighter.
✅ Current rating: 3A meets the required ≥3A.
✅ Saturation current: 4.3A exceeds the required ≥3.5A, providing adequate saturation margin.
✅ DC resistance: 38mΩ max is well below the required ≤120mΩ, supporting lower conduction loss and better efficiency.
✅ Type: Shielded wirewound matches the required shielded wirewound construction.
✅ Mounting type: Surface Mount matches the requirement.
✅ Operating temperature range: -40°C to +125°C matches the required range.
✅ RoHS compliance: ROHS3 Compliant, satisfying the requirement.

All required specifications are satisfied. This component is approved for the 24V to 5V buck converter inductor application.