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Gen 3 SupIRBuck® IR389x Family of Products The third generation of integrated, feature-rich SupIRBuck® synchronous buck voltage regulators are designed to address the new requirements of emerging energy efficient netcomm, server and storage applications. These new SupIRBuck single output devices feature a newly patented modulator scheme that generates the industry’s smallest, jitter free pulse widths. PRESS RELEASE DATA SHEETS HI-RES GRAPHIC SuPIRBuck® PAGE Design Tool Features Advantages • 4A, 6A, 9A, 12A, 16A options • 4.5V-21V single input voltage • Operating Junction temperature -40C to 125 C • Margin pin • Tracking • 0.5% Reference voltage accuracy • Patented jitter-free modulator • 2 level Smart LDO boosts efficiency • Input voltage feed-forward • Thermally compensated current limit • PLL based frequency synchronization • Start/Stop ramp • Start-up into pre-biased output • Input voltage aware enable • Programmable OVP/Power Good • Patented modulator virtually eliminates jitter enabling higher closed loop bandwidth for lower output capacitance. • Updating to a smart LDO further increases the SupIRBuck’s industry leading efficiency within the same compact footprint. January 2012