レギュレーター
Automotive Regulators
Our unique solutions work with input voltages from 2.8V to 50V for 12V/24V automotive applications, and generate output rails that power microprocessors, transceivers, sensors and displays. We offer cutting edge ASIL-D certified PMICs for safety automotive applications, enabling low FIT-level system designs and small footprint solutions. Single output regulators are available across a range of output current capabilities, and many offer “low Iq” operation to allow keepalive supplies to minimize current drawn from the battery input.
Documentation & Resources
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.
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
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
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.
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.
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
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.
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.
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.
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.