MILPITAS, CA - July 8, 2014 - Linear Technology Corporation announces the LTC3124, a dual-phase, 3MHz, current-mode, synchronous boost DC/DC converter with output disconnect and inrush current limiting. Dual-phase operation significantly reduces peak inductor and capacitor ripple currents, minimizing component size while delivering lower output ripple versus an equivalent single-phase device. Its internal 2.5A per phase capable switches together deliver 5A of switch current. These 18V switches can deliver output voltages as high as 15V from an input voltage range of 1.8V at start-up (0.5V when running) to 5.5V, making it ideal for supercapacitor-based backup power systems and Li-Ion/Polymer or multicell NiMH applications. The LTC3124 delivers up to 1.5A of continuous output current at 12V from a 5V input. Synchronous rectification enables efficiencies up to 95%, while Burst Mode® operation lowers quiescent current to only 25µA, providing extended battery run time. The combination of its thermally enhanced 3mm x 5mm DFN-16 (or TSSOP-16) package and a constant switching frequency of up to 3MHz, which minimizes both inductor and capacitor size, provides a compact solution footprint required in handheld applications.
Linear Technology PR: LTC3124 5A, 15V 2-Phase Synchronous Boost Regulator Offers 95% Efficiency, 3MHz Switching & Output Disconnect in a 3mm x 5mm DFN
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