• Multiphase Controllers

– The AOZ71131QI is a high performance digital and analog hybrid multiphase buck controller designed in compliance with Intel IMVP8, 9, and 9.1/9.2 platform specifications. It provides three output rails (up to 9 + 1 + 1) and supports 4 separate SVID domains. Up to 9 phases for core voltage domain (IA), 1 phase for graphics voltage domain (GT) and 1 phase for Auxiliary domain (SA) as well as the PSYS domain’s reporting functions, incorporated into a single SVID interface. AOS offers a novel AOS Advanced Transient Modulator (A2TM). It combines an advanced variable frequency hysteretic peak current mode control with proprietary phase current sensing scheme for fast transient response and low system cost. The control loop enhances light-load efficiency by seamlessly entering DCM mode of operation. Autonomous Phase Management also assures the optimized efficiency and power loss during light load with single phase DCM mode.