Alpha and omega semiconductor introduces 18v 2a, and 3a ezbuck™ in thermally enhanced ultra-thin tsot23-6 package

Alpha and omega semiconductor limited introduced aoz6682ci and aoz6683ci. these devices are high efficiency, simple-to-use synchronous buck regulators. the aoz6682ci and aoz6683ci are both available in an ultra-thin, thermally enhanced tsot23-6 package and deliver 2a and 3a output current, respectively. the new devices offer high efficiency over the full load range, allowing greener power conversion for a variety of consumer electronics applications such as lcd tvs, set-top boxes, high definition blu-raytm disc players and networking terminals. the new devices incorporate a low resistance synchronous buck power stage that enables up to 95% efficiency. combined with a thermally enhanced package, the aoz6682ci and aoz6683ci achieve 10°c cooler operation at full load compared to similar competing devices. under heavy load conditions, the devices operate in a fixed frequency continuous-conduction mode (ccm). at light loads or in standby mode, the devices employ a proprietary pulse energy mode (pem) control scheme. this control scheme and low quiescent current of 200ua, allows the buck converter design to achieve efficiencies of 89% at light loads. the aoz6682ci and the aoz6683ci are immediately available in production quantities with a lead time of 12 weeks. the unit price is $0.42 for the aoz6682ci and $0.52 for the aoz6683ci in 1000 pc quantities.
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