65 V input ceiling and 500 mA load rating
The LTC3630EMSE#TRPBF is a monolithic step-down buck converter from Analog Devices, rated for 500 mA continuous output current from a 4 V to 65 V input range. The 65 V maximum input covers 48 V industrial bus rails, 24 V nominal supplies with headroom for transients, and 12 V automotive systems during cold-crank dips to 4 V.
Synchronous rectification and thermal package
Integrated synchronous rectifier eliminates the external catch diode, reducing BOM count and improving efficiency at light loads — the internal low-Rds(on) switch handles the full 500 mA without a Schottky. The 16-MSOP-EP (exposed pad) package requires a thermal via pattern on the PCB to conduct heat from the pad to the ground plane. Positive or negative output configuration enables inverting buck-boost topologies from a single inductor — useful for generating a -5 V rail from a +12 V bus without a separate inverter IC.
Active lifecycle and compliance posture
ROHS3 compliant, with no exempt substances that could trigger a supply chain discontinuity under evolving EU or China RoHS regulations.