| Feature | ADN545 | Traditional Buck Controller | Competitor Integrated Stage | | :--- | :--- | :--- | :--- | | | High (FETs, driver, telemetry) | Low (requires external FETs) | Medium | | Current per Phase | 45A | Varies (typically <25A) | 40A | | Digital Interface | Yes (PMBus) | No | Yes | | PCB Footprint | 35 mm² | >150 mm² | 40 mm² | | Efficiency at 40A | 93.5% | 89% (with good FETs) | 92% | | Cost (1000-unit) | Mid-range | Low (but higher BOM cost) | Mid-range |
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