18. Buck Converter Inductor Selection

✅ Inductance: 22µH matches the required 22µH.
✅ Inductance tolerance: ±20% matches the required ±20% or tighter.
✅ Current rating: 6A exceeds the required ≥3A, providing strong current handling margin.
✅ Saturation current: 6.5A exceeds the required ≥3.5A, giving adequate saturation margin for buck converter operation.
✅ DC resistance: 24.7mΩ is well below the maximum allowed 120mΩ, which helps reduce conduction loss and improve efficiency.
✅ Type: Shielded wirewound construction matches the required Shielded Wirewound type.
✅ Mounting type: Surface Mount matches the requirement.
✅ Operating temperature range: -40°C to +155°C exceeds the required -40°C to +125°C range.
✅ RoHS compliance: ROHS3 Compliant, satisfying the requirement.

All required specifications are satisfied. This component is approved for the stated buck converter inductor selection task.