Alpha and Omega Semiconductor Introduces High-Current EZBuck Regulator
January 17, 2019 at 12:25 am IST
Share
Alpha and Omega Semiconductor Limited introduced a new family of EZBuck regulators. The first two members of the family are the 20A, AOZ2367QI and the 25A, AOZ2368QI. The new devices provide a compact, efficient power converter solution for next-generation chipsets used in high-end TVs, servers, data storage systems, networking and other compact PC systems. Next generation microprocessors and SoCs require more power to do fast-speed calculation as well as to provide more add-on functions for the enhancement of user experiences. Implementing much higher output power in a DC/DC converter often requires the use of several external components such as high current and low turn-on resistance MOSFETs. The 20A, AOZ2367QI and the 25A, AOZ2368QI make the design of such converters simple by integrating AOS’ advanced MOSFET technology to power next generation high-end systems. AOS’ unique packaging expertise also provides these converters better thermal management capabilities to ensure the system runs in a stable and robust environment. The new devices have all the integration advantages of the EZBuck family of products. Combining AOS’ benchmark MOSFET technology with advanced packaging technology enables high-performance and high-converting efficiency DC/DC regulators in a compact footprint. AOS’ performance MOSFETs enable high efficiency over the entire load range with low on resistance in the range of 1m? to 4m?, and light-load efficiency that gets a further boost with an optional pulse frequency mode (PFM). The 20A and 25A devices are all available in a footprint compatible QFN 5 x 5mm package allowing designers an easy upgrade path as power requirements increase. The devices operate over a wide input voltage range of 4.5V to 24V with output voltages adjustable down to 0.6V. The proprietary COT architecture provides ultra-fast load transient response performance and allows a stable and low voltage ripple operation with small size ceramic capacitors. Competing solutions require several external components when using all ceramic capacitors and needs to generate a larger output ripple voltage to stabilize the circuit. Additionally, the input feed forward feature provides a constant switching frequency over the entire input voltage range, which further alleviates noise concerns for designers.
Alpha and Omega Semiconductor Limited is a designer, developer and global supplier of a portfolio of power semiconductors. Its portfolio of products targets high-volume applications, including personal computers, graphic cards, game consoles, flat panel televisions (TV), home appliances, power tools, smart phones, battery packs, consumer and industrial motor controls and power supplies for TVs, computers, servers and telecommunications equipment. Its product portfolio includes power discrete and power ICs that serve the large and diverse analog market for power semiconductors. The power discrete products consist of low, medium and high voltage power MOSFETs. The power ICs deliver power as well as control and regulate the power management variables, such as the flow of current and level of voltage. Its portfolio of power semiconductors includes over 2,600 products. The Company conducts its operations primarily in the United States of America, Hong Kong, China, and South Korea.