Two regulators implement higher power output to accelerate operation

The high-current EZBuck regulators support 20A to 25A output to power next-generation chipsets. The 20A, AOZ2367QI and the 25A, AOZ2368QI are compact and suitable for used in high-end TVs, servers, data storage systems, networking and other compact PC systems.

According to the company, next-generation microprocessors and SoCs require more power to do fast-speed calculation as well as to provide more add-on functions to enhance 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. Both regulators integrate MOSFET technology and the company's packaging to optimise thermal management and a stable and robust environment.

The MOSFETs enable high efficiency over the entire load range with low on resistance between 1.0 to 4.0mΩ. Light-load efficiency is boosted with an optional pulse frequency mode (PFM). The devices are all available in a footprint-compatible QFN 5.0 x 5.0mm package, enabling an easy upgrade path as power requirements increase, explains the company. Both operate over a wide input voltage range of 4.5 to 24V with output voltages adjustable down to 0.6V.

Proprietary COT architecture provides fast load transient response and allows a stable and low voltage ripple operation with small ceramic capacitors rather than requiring several external components when using all ceramic capacitors and the need to generate a larger output ripple voltage to stabilise the circuit. The input feed forward feature provides a constant switching frequency over the entire input voltage range to alleviate noise concerns.

The AOZ2367QI and AOZ2368QI are immediately available in production quantities with a lead-time of 12 weeks.