Multiple Output Regulators
Multiple output regulators provide two to ten outputs from a single input supply. Outputs can be derived from a combination of buck, LDO, boost, or charge pump topologies depending on the application requirements, as well as high-side gate drivers for driving input and/or load disconnect FETs.
Offering highly robust fault detection/protection and high temperature, 150°C operation, our wide input range capability allows the devices to operate seamlessly through input voltage transients including automotive load dump and idle stop conditions. Power and communication interface with the host MCU is architected to be compatible with a wide variety of MCU vendors, including multiple and programmable MCU watchdog types.
Offering highly robust fault detection/protection and high temperature, 150°C operation, our wide input range capability allows the devices to operate seamlessly through input voltage transients including automotive load dump and idle stop conditions. Power and communication interface with the host MCU is architected to be compatible with a wide variety of MCU vendors, including multiple and programmable MCU watchdog types.
Featured Products
ARG82801
The ARG82801 is a high-side gate driver, power management IC designed to supply power for microprocessors, sensors, and CAN transceivers.
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
Documentation & Resources
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.
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
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.
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
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.
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.