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Allegro MicroSystems Inc. Datasheets for IC Voltage Regulators

IC voltage regulators are three-terminal devices that provide a constant DC output voltage that is independent of the input voltage, output load current, and temperature. IC voltage regulators are used in power supplies that hold their output voltage constant over a wide range of load variations.
IC Voltage Regulators: Learn more

Product Name Notes
Designed to provide the power supply requirements of next generation car audio and infotainment systems, the A8589 provides all the control and protection circuitry to produce a high current regulator...
Designed to provide the power supply requirements of next generation car audio and infotainment systems, the A8590 provides all the control and protection circuitry to produce a high current regulator...
Designed to provide the power supply requirements of next generation car audio and infotainment systems, the A8600 provides all the control and protection circuitry to produce four high current regulators,...
Designed to provide the power supply requirements of next generation car audio and infotainment systems, the ARG81801 provides all the control and protection circuitry to produce a high current regulator...
Designed to provide the power supply requirements of printers, office automation, industrial, and portable equipment, the A4490 provides three high current, high performance, switching regulator outputs with independent soft start.
Designed to provide the power supply requirements of printers, office automation, industrial, and portable equipment, the A4491 provides three high current, high performance, switching regulator outputs in a single package,...
Designed to satisfy the power supply requirements of automotive, industrial, and consumer applications, the A8660 includes all the control and protection circuitry to produce a robust PWM controller delivering high...
Multiple Output Regulators
Single Output Regulators
The A4402 is a dual-output regulator, combining in a single package a constant on-time buck regulator and a linear regulator (LDO)—each with adjustable output voltages. It is ideal for applications...
The A4403 is a buck converter that uses valley current-mode control. This control scheme allows very short switch on-times to be achieved, making it ideal for applications that require high...
The A4405 is an automotive power management IC that uses a high frequency constant on-time 5.45V pre-regulator to supply two internal 5V linear regulators and a 3.3V linear DMOS driver.
The A4406 is an automotive power management IC that uses a high frequency constant on-time 5.45V pre-regulator to supply an internal 5V linear regulator and a 3.3V linear DMOS driver.
The A4407 is an automotive power management IC that uses a 2.2MHz constant on-time (COT) buck pre-regulator to supply a 5V linear regulator, a 5V tracking/protected linear regulator, a 3.3V...
The A4409 is a power management IC that uses a buck or buck-boost pre-regulator to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage, complete with control, diagnostics,...
The A4411 is a power management IC that can be configured as a buck or buck/boost pre-regulator to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage complete...
The A4412 is a power management IC that uses a buck or buck/boost pre-regulator to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage complete with control, diagnostics...
The A4413 is a power management IC that can be configured as a buck or buck-boost pre-regulator to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage complete...
The A4447 is a 2A, high efficiency general-purpose buck regulator designed for a wide variety of applications. The output voltage is adjustable from 0.8 to 24V, based on a resistor...
The A4450 is a power management IC that can implement either a buck or buck-boost regulator to efficiently convert automotive battery voltages into a tightly regulated voltage. It includes control,...
The A4480 is a wide input regulator with complete control, diagnostics, and protection features that address many requirements of automotive applications. It includes a boost function to allow operation with...
The A4481 is a single low-dropout linear regulator with complete control, diagnostics, and protection features that address many requirements of automotive applications. It regulates input voltages from 5.25 to 40...
The A81407 is ideal for both Automotive and Industrial applications, where high temperature operation, a high level of integration, and robust solutions are required. The IC integrates a buck or...
The A8450 is a multioutput power supply intended for automotive applications. The A8450 operates from a wide input supply range and is designed to satisfy the requirements of high ambient...
The A8498 is a step down regulator that will handle a wide input operating voltage range. The A8498 is supplied in a low-profile 8-lead SOIC with exposed pad (package LJ).
The A8582 is an adjustable frequency, high output current, PWM regulator that integrates a low resistance, high-side, N-channel MOSFET. The A8582 incorporates current-mode control to provide simple compensation, excellent loop...
The A8583 is an adjustable frequency, high output current, PWM regulator that integrates a low resistance, high-side, N-channel MOSFET. The A8583 incorporates current-mode control to provide simple compensation, excellent loop...
The A8584 is an adjustable frequency, high output current, PWM regulator that integrates a low resistance, high-side, N-channel MOSFET. The A8584 incorporates current-mode control to provide simple compensation, excellent loop...
The A8585 family is designed to provide the power supply requirements of next generation car audio and infotainment systems. The A8585 family provides all the control and protection circuitry to...
The A8586 is a high frequency step-down switching regulator with an integrated high-side power MOSFET. It provides up 3.5 A output current. The A8586 can achieve fast transient response utilizing...
The A8587 is a high-frequency step-down switching regulator with an integrated high-side power MOSFET. It provides up to 2 A output current. The A8587 can achieve fast transient response using...
The A8591 is designed to provide the power supply requirements of next generation car audio and infotainment systems. The A8591 provides all the control and protection circuitry to produce a...
The A8601 is a fixed frequency, multiple-output supply for LCD bias. Its switching frequency can be either programmed or synchronized with an external clock signal between 350 kHz and 2.25...
The A8603 is a fixed-frequency, multiple-output supply for LCD bias. Its switching frequency can be either programmed or synchronized with an external clock signal between 350 kHz and 2.25 MHz.
The A8650 is an adjustable frequency, high output current, PWM regulator that integrates a high-side, P-channel MOSFET and a low-side, N-channel MOSFET. The A8650 incorporates current-mode control to provide simple...
The A8651 is an adjustable frequency, high output current, PWM regulator that integrates a high-side, P-channel MOSFET and a low-side, N-channel MOSFET. The A8651 incorporates current-mode control to provide simple...
The A8652/53 is a high output current synchronous Buck regulator that provides tight load regulation over a wiring harness without the need for remote sense lines. This remote load regulation...
The A8654 is a high output current synchronous buck regulator that integrates low RDSON high-side and low-side N-channel MOSFETs. The A8654 incorporates PWM current mode control to provide simple...
The APM81911 is a highly integrated, 3A, low EMI, DC-DC regulator module that satisfies demanding power delivery requirements. The APM81911 includes a high-performance DC-DC regulator IC, a low DCR inductor...
The ARG81400 is rated up to 50V input and provides 6 total outputs. There are 5 LDOs, and a post regulated DC/DC switcher to power MCUs, as well as a...
The ARG81401 is a power management IC that uses a buck or buck-boost pre-regulator to efficiently convert automotive battery voltages into a tightly regulated intermediate voltage, complete with control, diagnostics,...
The ARG81402 is designed to provide power to loads such as microprocessors, sensors, and communication transceivers, and is ideal for both Automotive and Industrial applications.The device is in a small...
The ARG81800 includes all the control and protection circuitry to produce a PWM regulator with ±1.5% output voltage accuracy, with ultralow quiescent current to enable “keepalive” supply operation with minimal...
The ARG82800 is an ASIL D PMIC for automotive control units, providing 4 power rails for microcontroller/DSP, sensors, CAN, memory, and other loads in the system. It includes a unique...
The ARG82801 and ARG82801-1 are power management ICs designed to supply power for microprocessors, sensors, and CAN transceivers and ideal for under-hood applications. The devices integrate a buck or buck/boost...