Functional Safety PMICs
Automotive PMICs engineered for safety-critical systems.
Allegro's functional safety Power management ICs deliver robust, multi-rail power management with integrated diagnostics and ASIL D functional safety compliance. Designed for EPS, ADAS, and battery management systems, these ICs combine buck or buck-boost pre-regulators, multiple LDOs, and high-side gate drivers with proprietary BCD process technology enabling 175°C operation. With built-in SPI control, comprehensive fault reporting, and EMC-optimized features, our PMICs are designed with ISO 26262 requirements in mind.
Featured Products
A81411
The A81411 is a power-management integrated circuit (IC) that integrates a buck-boost preregulator, five LDOs, and many safety features
ARG81402
Multi-Output Regulator with Buck Pre-Regulator, 5× LDO Outputs, Watchdog, and SPI
A4412
Buck or Buck/Boost Pre-Regulator with a Synchronous Buck, 5 Internal Linear Regulators, Pulse-Width Watchdog Timer, and SPI
ARG82801
The ARG82801 is a high-side gate driver, power management IC designed to supply power for microprocessors, sensors, and CAN transceivers.
Product Selection Guide
Documentation & Resources
Application Note
Introduction to Allegro SPI
Serial peripheral interface (SPI) is a 4-wire, full duplex digital protocol. Full duplex means that data is transmitted and received simultaneously.
Guide
ARG81800 Evaluation Board User Guide
The ARG81800 evaluation board is designed to aid system designers in evaluating the operation and performance of the ARG81800 synchronous buck regulator.
Guide
A81805 Evaluation Board User Manual
The A81805 Evaluation Board is designed to aid system designers with evaluating the operation and performance of the A81805 and A81805-1 2.5 A synchronous buck regulators.
Guide
A81411 Evaluation Board User Guide
The A81411 Evaluation Board is designed to help system designers evaluate the operation and performance of a power management IC.
Application Note
Inductorless Buck/Boost Power Supply for Low-Power Automotive Sensor Applications
AN296247 - This article discusses the features and applications of Allegro MicroSystems’ A4480 regulator IC in automotive low-power systems specifically for sensor supply, and how the IC helps designers meet their challenging requirements.
Application Note
Resistor Divider Spreadsheet Provides Standard Resistor Values for Optimal Converter Output-Voltage Accuracy
AN296255 - To help designers find the best resistive voltage divider for a specific design, an Allegro calculator is presented.
Technical Article
Streamlining Automotive Power Design in Safety Critical Systems
Discover how the Allegro A81411 PMIC streamlines automotive power design for safety-critical systems like EPS, OBC, and more. Learn about its compact design, improved efficiency, and ASIL-D compliance for reliable operation in harsh environments.
Application Note
Short Duty Cycles Lead to Smaller DC-DC Converters
AN295054 - This application note describes recent trends in the electronic component power management industry, in particular the innovative application of valley current mode control.
Guide
A8650 Evaluation Board User Guide
This evaluation board is used to demonstrate the operation and performance of the Allegro A8650 synchronous buck regulator module.
Guide
A8660 Evaluation Board User Guide
The A8660 Evaluation Board is designed to help system designers evaluate the operation and performance of the A8660 synchronous buck regulator module.