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Photo Release -- Alpha And Omega Semiconductor Debuts Highly Integrated Power ICs For Next Generation Computing Platforms

SUNNYVALE, Calif., Oct. 24, 2012 (GLOBE NEWSWIRE) -- Alpha and Omega Semiconductor Limited (AOS) (Nasdaq:AOSL), a designer, developer and global supplier of a broad range of power semiconductors, today announced the release of AOZ1232-01 and AOZ1233-01, high efficiency, easy-to-use synchronous EZBuck™ regulators featuring a proprietary Constant On-Time (COT) control architecture that enables smaller solutions and simplifies designs. The new products provide an optimal solution for next generation computing chipsets that are pushing the limits of DC/DC converter size. The AOZ1232-01 and AOZ1233-01 are ideally suited for the latest notebook PCs, ultrabooks, graphics cards, servers, data storage systems, and high-end smart TVs.

AOZ1232
AOZ1232/33

A photo accompanying this release is available at http://www.globenewswire.com/newsroom/prs/?pkgid=15382

As next generation digital chipsets offer higher performance while reducing their power consumption; system designers are utilizing this benefit by shrinking printed circuit board (pcb) areas and total system size. Power supplies that were traditionally using DC/DC controller ICs with external MOSFETs are now requiring more integrated solutions to fit within the smaller pcb area. AOS's low on-resistance MOSFET technology combined with advanced packaging technology enables high performance DC/DC regulators in small package sizes. The AOZ1232-01 and AOZ1233-01 provide 6A and 8A of continuous output current, respectively, in a 5x5mm QFN package, while operating over a wide input voltage range of 2.7V to 28V. The proprietary COT architecture provides ultra-fast load transient response performance and allows stable and low voltage ripple operation with small size ceramic capacitors. Competing solutions require several external components when using all ceramic capacitors and need to generate a larger output ripple voltage to stabilize the circuit. Additionally, the input feed forward feature of AOZ123x provides a constant switching frequency over the entire input voltage range – which further alleviates noise concerns for designers.

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