Application-specific regulator designed to power Intel Arrow Lake platform

Alpha and Omega Semiconductor Limited has announced its new application-specific EZBuck Regulator. The highly integrated, compact, and high-power-density AOZ23567QI Constant On-Time Buck Converter provides an upgraded solution intended to support VCCPRIM_VNNAON rails in the Intel Arrow Lake platform.

Intel's Arrow Lake S Line platform needs VCCPRIM_VNNAON rails with high currents. These high-current rails are typically supported by power implementations that require either a controller with external discrete power FETs or a converter with a large package. AOS' Constant On-Time Buck Converter provides a highly integrated, high-power-density solution that includes all necessary power silicon in a thermally enhanced QFN 5 x 5 package. The device can give 22A continuous and 45A peak current capability.

Specifically designed to fulfil the specifications of the Intel Arrow Lake S Line platforms, the device features a nominal fixed voltage of 0.77V, which is supplied in system states of S0 through S5. Intel also needs power regulation capable of remote sensing to sustain accurate tolerance and account for ground bounce. It has passed all the validation requirements through stringent tests to provide compliance with Intel specifications. Also, Intel has approved it as a key component on their PCL (Platform Component List) for VCCPRIM_VNNAON power architectures.

The device also features a PGOOD output, an integrated bootstrap diode, and an integrated soft start to assist with increased reliability. Protection features include cycle-by-cycle current limit, Short-circuit Protection (SCP), OVP, and thermal shutdown. Also, the EZBuck Regulator's LIM pin permits system designers to adjust current limit levels, allowing them to balance the power choke to the output, the output's current capability, and the component size.

"The AOZ23567QI offers designers a feature-rich, high-current solution for VCCPRIM_VNNAON rails, providing optimal power support for the Intel Arrow Lake platforms. PCB real estate is at a premium in today's ever-shrinking mobile laptop form factors. Utilising AOS' advanced EZBuck technology, the AOZ23567QI delivers a highly integrated yet very compact buck converter that efficiently and effectively solves the system designer's continual space-constrained challenges," said Wayne Lee, senior marketing manager, EZBuck Product Line at AOS.