90 A MONOLITHIC
90 A monolithic half-bridge smart power stage
90 A monolithic half-bridge smart power stage
Integrated drivers and MOSFETs for multiphase VRMs
AI & HPC · Data Center · Telecommunications
Public source
AU4991 is published under Aura Semiconductor's Data Center Smart Power Stages.
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Monolithic 90 A half-bridge smart power stage from Aura Semiconductor for high-density multiphase data-center voltage regulators.
The official product page describes a monolithic half-bridge smart power stage with integrated power MOSFETs and gate drivers that delivers 90 A output current over a wide input supply range, intended to work with Aura controllers in high-density multiphase regulators. Aura lists a 4.5 V to 16 V VIN range, 3.3 V tri-state PWM input, accurate current and temperature reporting, over-current and over-temperature protection, UVLO for VDD/VDRV and VIN, high-side and low-side short protection, TLVR open/short protection, limp-mode support with an Aura controller, and a 5 mm × 6 mm 41-pin LGA package that can operate up to 2 MHz. Published applications include servers, workstations and enterprise storage; CPUs, GPUs, ASICs and AI chips; and power modules. This listing records AU4991 as published by Aura Semiconductor.
Key characteristics associated with this technology.
90 A monolithic half-bridge smart power stage
Integrated drivers and MOSFETs for multiphase VRMs
4.5–16 V VIN; 5 mm × 6 mm 41-pin LGA; up to 2 MHz
Current/temperature telemetry and fault reporting to Aura controllers
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