New family of converters supports 20 A to 25 A output current to power next generation chipsets
Alpha and Omega Semiconductor (AOS) introduced a new family of EZBuck™ regulators. The first two members of the family are the 20 A, AOZ2367QI and the 25 A, 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 20 A, AOZ2367QI and the 25 A, 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.
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| AOZ2367QI Efficiency vs. Load Current. |
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 1 mΩ to 4 mΩ, and light-load efficiency that gets a further boost with an optional pulse frequency mode (PFM). The 20 A and 25 A devices are all available in a footprint compatible QFN 5 × 5 mm package allowing designers an easy upgrade path as power requirements increase. The devices operate over a wide input voltage range of 4.5 V to 24 V with output voltages adjustable down to 0.6 V. 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 $2.529 for the AOZ2367QI and $2.948 for the AOZ2368QI.
