3A SupIRBuck IVR Delivers 97.5% Efficiency in 3.5x3.5mm Package
International Rectifier Corp. (IR) today introduced the IR3823 SupIRBuck® integrated voltage regulator (IVR) designed for space-constrained, energy efficient netcom, server and storage applications. The IR3823 delivers up to 3A and claims superior efficiency in an ultra-compact 3.5x3.5mm package. Efficiencies in excess of 97.5% are obtainable for designs converting power from a 6V input to a 4.8V output.
The high initial efficiency allows switching at up to 1.5MHz from a 12V supply to enable a complete 3A power supply solution in less than 130mm2. Featuring constant frequency and virtually jitter-free operation with synchronization capability, the new device is well-suited to noise-sensitive applications, while the higher bandwidth reduces component count to shrink PCB footprint. A tri-level selectable soft-start feature is also offered for ease of sequencing.
“Offering excellent thermal performance, the IR3823 is an easy-to-implement solution in less than 130mm2 that allows power conversion directly from a 12V input for space constrained, low current point-of-load applications that require benchmark performance,†said Ramesh Balasubramaniam, Director of Marketing, IR’s Enterprise Power Business Unit.
The IR3823 features programmable switching frequency from 300kHz to 1.5MHz. Other key functions include thermally compensated over-current protection, output over-voltage protection and thermal shutdown. Pricing for the IR3823 begins at US $1.13 each in 100,000-unit quantities. Pricing for the IRDC3823 SupIRBuck reference design starts at US $29 per kit. Production orders are available immediately.
