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A4412 Datasheet Buck or Buck/Boost Pre-Regulator

Manufacturer: Allegro MicroSystems

Overview: A4412 Buck or Buck/Boost Pre-Regulator with a Synchronous Buck, 5 Internal Linear Regulators, Pulse-Width Watchdog Timer, and.

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General Description

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 and protections.

The output of the preregulator supplies a 5 V / 100 mA protected linear regulator, a 3.3 V / 90 mA linear regulator, a 5 V / 200 mA linear regulator, a 5 V / 55 mA linear regulator, a 5 V / 30 mA linear regulator and an adjustable 400 mA synchronous buck regulator.

Designed to supply CAN transceiver, sensor, and micropro

Key Features

  • A2-SIL™ product.
  • device features for safety critical systems.
  • Automotive AEC-Q100 qualified.
  • Wide input voltage range, 3.8 to 40 VIN operating range, 50 VIN maximum.
  • Buck or buck/boost pre-regulator (VREG).
  • Adjustable 1.3 to 3.3 V, 400 mA synchronous buck.
  • Four internal linear regulators with foldback short-circuit protection, 3.3 V (3V3) and three 5 V (V5CAN, V5A, and V5B).
  • One internal 5 V linear regulator (V5P) with foldb.

More Datasheets from Allegro MicroSystems

Part Number Description
A4403 Valley Current Mode Control Buck Converter
A4450 Buck-Boost Controller
A4480 Automotive Regulator
A4481 50mA Automotive Linear Regulator
A4490 Triple Output Step-Down Switching Regulator
A4491 Triple Output Step-Down Switching Regulator
A4492 Triple Output Step-Down Switching Regulator