IR’s SupIRBuck Family of Integrated DC-DC Regulators Shrinks Silicon Footprint by 70 Percent; Simplifies Embedded Power Designs

IR's SupIRBuck Family of Integrated DC-DC Regulators Shrinks Silicon Footprint by 70 Percent; Simplifies Embedded Power Designs

International Rectifier has introduced the SupIRBuck family of versatile wide input, single output synchronous buck voltage regulators for high density, high performance data center applications.

The SupIRBuck family of point-of-load (POL) voltage regulators integrates IR’s high performance synchronous buck control ICs and benchmark HEXFET trench technology MOSFETs in a compact 5mm by 6mm Power QFN package, shrinking the silicon footprint by 70 percent compared to discrete solutions, and offering between 8 to 10 percent higher full-load efficiency than competing monolithic ICs.

Designed for four, seven and 12 amps of output load current at 600kHz switching frequency, the IR38xx operates from a wide input voltage range of between 2.5V to 21V, and provides output voltage as low as 0.6V. Common features include pre-bias start up, fixed 600kHz switching frequency, hiccup current limit, thermal shutdown, and precise output voltage regulation.