LT80605AAFO+T

LT80605AAFO+T is the 5.5 A member of the LT80604A/LT80605A Silent Switcher step-down regulator family, taking inputs from 3 V to 65 V in a 17-lead 3 mm by 4 mm QFN package. It pairs the family's wide input range with the higher current rating, so a single device can feed multi-amp point-of-load rails in industrial controllers, automotive modules and communications equipment directly from 12 V, 24 V or 48 V buses. The Silent Switcher architecture suppresses EMI emissions while preserving fast, efficient switching, reducing the shielding and filter burden in mixed-signal enclosures. Standby drain is only 8 microamp quiescent current, and the junction operating range of -40 degrees C to +150 degrees C suits thermally demanding installations. Selection advice: pick the LT80605AAFO+T when continuous load plus transient margin exceeds the 4 A LT80604AAFO+T rating; both share the family footprint and input range, so the step up stays a BOM change rather than a redesign. Order by the full LT80605AAFO+T code, and treat the family's HV-footnote variants as potential future products that are not orderable. Parameters verified against Analog Devices documentation.