Regulator Supports 20A to 25A Output Current



SUNNYVALE, Calif.– Alpha and Omega Semiconductor Limited (AOS) 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 powerin a DC/DC converter often requires the use of several external componentssuch 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-performanceand high-converting efficiencyDC/DC regulators in a compact footprint.  AOS’ performance MOSFETs enable high efficiency over the entire load rangewith low on resistance in the range of 1mΩ to 4mΩ, 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 5x 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.

Pricing and Availability

The AOZ2367QI and AOZ2368QI are immediately available in production quantities with a lead-time of 12 weeks. The unit price for 1,000 pieces is $2.529for the AOZ2367QI and $2.948for the AOZ2368QI.

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