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Allegro MicroSystems Inc. Datasheets for IC Linear Voltage Regulators

Integrated circuit (IC) linear voltage regulators use voltage-controlled sources to force a fixed voltage to appear at their output terminal.
IC Linear Voltage Regulators: Learn more

Product Name Notes
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 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 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 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 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,...