Multiphase controller meets Intel IMVP 9.2

AOS offers the AOZ71137QI, a 3-rail, 7-phase controller that complies with Intel Mobile Voltage Positioning (IMVP) 8, 9, 9.1, and 9.2 specifications. Together with an AOS power stage, the hybrid digital controller offers a Vcore power management system for Intel Meteor Lake and Arrow Lake CPUs, as well as other notebook CPUs.

The step-down controller supports four separate SVID domains: up to four phases for the core voltage, two phases for graphics, and one phase for the auxiliary output. It also includes the Psys domain’s reporting functions. The part operates in a variable frequency hysteretic peak current mode, combined with a proprietary phase current sensing scheme. This design allows for fast transient response and optimal current balance for both transient and DC loads.

AOS offers a portfolio of DrMOS and Smart Power Stages (SPS) for use with the AOZ71137QI controller. According to the company, DrMOS devices meet Vcore power requirements with robustness, featuring a 30-V breakdown voltage and UIS testing. SPS devices integrate current and temperature monitoring for accurate reporting. The AOZ71137QI also works with industry-standard DrMOS and SPS components.

The AOZ71137QI controller is available now in production quantities, with lead times of 12 to 16 weeks. Prices start at $2.40 each in lots of 1000 units.

AOZ71137QI product page

Alpha & Omega Semiconductor 

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