A4411 - Adjustable Frequency Buck or Buck-Boost Pre-Regulator

Allegro Micro Systems

Key Features

Automotive AEC-Q100 qualified.
3.5 to 36 VIN operating range, 40 VIN maximum.
Buck or buck-boost pre-regulator (VREG).
Adjustable PWM switching frequency: 250 kHz to 2.4 MHz.
PWM frequency can be synchronized to external clock.
Synchronous buck regulator (ADJ) delivers 0.8 to 3.3 V.
Two 5 V LDOs for “local” sensors (V5SNR) and communications (V5CAN) with foldback short-circuit protections.
5 V internal tracking LDO.

A4411 adjustable frequency buck or buck-boost pre-regulator by Allegro Micro Systems - Datasheet Preview

Datasheet Details

Part number	A4411
Manufacturer	Allegro Micro Systems
File Size	1.57 MB
Description	Adjustable Frequency Buck or Buck-Boost Pre-Regulator
Datasheet	A4411 Datasheet

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Full PDF Text Transcription (Reference)

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A4411 Adjustable Frequency Buck or Buck-Boost Pre-Regulator with a Synchronous Buck, 3 LDOs, Pulse-Width Window Watchdog, NPOR, and POK5V FEATURES AND BENEFITS • Automotive AEC-Q100 qualified • 3.5 to 36 VIN operating range, 40 VIN maximum • Buck or buck-boost pre-regulator (VREG) • Adjustable PWM switching frequency: 250 kHz to 2.4 MHz • PWM frequency can be synchronized to external clock • Synchronous buck regulator (ADJ) delivers 0.8 to 3.