Application-specific regulator to power Intel Rocket Lake platform

20-04-2021 | Alpha and Omega Semiconductor | Power

Alpha and Omega Semiconductor Limited has launched a new family of application-specific EZBuck regulators. The AOZ2263VQI-01 and AOZ2263VQI-02 are provided in a QFN 4 x 4 package and give the industry’s most compact footprint to support VCCIO rails in Intel Rocket Lake platforms utilised in desktop computing systems.

Intel’s Rocket Lake platform comprises two VCCIO rails; VCCIO_0 and VCCIO_1_2 power multiple I/O in Intel CPU. High-performance, personal computing systems support add-on features necessitating high-speed input/output communication. These feature-rich personal computing systems need VCCIO rails with high currents. Typical competitor power implementations need either a controller with external discrete power FETs or a converter with a large package. In contrast, its highly integrated solution incorporates all the power silicon in a single QFN 4 x 4 package for 12A.

The converters include features specially created to meet the Intel Rocket Lake Platform’s specifications. The 2-bit VID pins enable the VCCIO_0 and VCCIO_1_2 power rail to adjust with voltage for 1.05V, 1.075V, 1.1V, 1.125V, and 0.8V, 0.95, 1.0V, 1.05V, respectively, depending on multiple systems operating modes. Both devices have passed all the validation demands included in the Intel Rocket Lake Platform component list. The company's proprietary COT architecture offers ultra-fast load transient response performance. It facilitates stable and low voltage ripple operation with small-sized ceramic capacitors, further decreasing solution size and cost. The family is highly integrated, highlighting a PGOOD output, an integrated bootstrap diode and an integrated soft start. Protection features include cycle-by-cycle current limit, SCP, OVP and thermal shutdown. An LPM pin also enables system designs to lower VCCIO rails down to 0V for reducing system power consumption in standby or idle mode.

“The current capability offered by the AOZ2263VQI-01 and the AOZ2263VQI-02 offers designers an easy-to-use solution to support Intel Rocket Lake’s platform. In today’s ever-shrinking desktop motherboard form factors, PCB real estate is at a premium. Utilising AOS’s EZBuck regulator platform technology enables AOS to solve the system designer’s problem of ever-shrinking PCB real estate,” said Wayne Lee, Power IC Marketing at AOS.

By Natasha Shek