5 A synchronous buck for wide-input industrial rails
The RAA2116514GNP#HA0 is a step-down buck regulator delivering 5 A continuous output from a 4.5 V to 60 V input range — covering 12 V, 24 V, and 48 V industrial buses with headroom for transients. The 60 V max input means it survives load-dump events on a nominal 48 V rail without external clamping. Internal synchronous rectification eliminates the external Schottky catch diode, reducing BOM count and improving efficiency at lower output voltages. The output adjusts from 0.8 V up to 60 V via external feedback resistors, suiting it for powering core rails in industrial control, motor drives, and telecom equipment. Switching at 565 kHz, the regulator allows a compact inductor and output capacitor while keeping switching losses manageable for the 5 A load. The 28-QFN (4x5) package with exposed pad provides a low thermal impedance path to the PCB copper plane — critical for dissipating the heat from a 5 A step-down at high input-to-output differential.
Industrial temperature grade and active lifecycle
Rated for -40°C to 125°C junction temperature, the RAA2116514GNP#HA0 suits outdoor, engine-bay, and factory-floor environments where ambient temperatures push past 85°C. The junction temperature range is the design limit — the actual output current must be derated based on the board's thermal resistance at the target ambient. Renesas lists this part as Active in production, meaning no end-of-life pressure for current or new designs. ROHS3 compliant per. Sourced through independent distribution; availability and current pricing confirmed at RFQ.