Quality Standards and Environmental Certifications

Single Output Regulators

Allegro's regulator solutions are robust, protecting against faults, and they're also efficient, minimizing power losses and saving energy. They feature high temperature operation, including a junction temperature of 150°C.

Automotive and non-automotive devices are available with a variety of package types with exposed pads for excellent thermal dissipation.

Featured Products

20-pin 4mm x 4mm QFN ES with wettable flank

A81805

40 V, 2.5 A, Synchronous Buck Regulator with Low EMI and 6 µA Quiescent Current

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A8660

Wide Input Voltage, Adjustable Output, Synchronous Buck Controller with PWM Frequency Dithering, Synchronization, and NPOR

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A4480

Wide Input 5 V, 50 mA, Automotive Regulator with Output Short-to-Battery Protection and Power OK

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See below for our offering of buck regulators, buck/boost regulators, step down regulators, and low voltage regulators:

Documentation & Resources

Application Note

Short Duty Cycles Lead to Smaller DC-DC Converters

This application note describes recent trends in the electronic component power management industry, in particular the innovative application of valley current mode control.

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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. It examines as an example the Allegro™ A4403 device, which provides this advanced form of power management.

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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.

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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.

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