A4408 - Adjustable Frequency Buck or Buck-Boost Pre-Regulator

Product Overview

Allegro Micro Systems

Datasheet Details

Part number	A4408
Manufacturer	Allegro Micro Systems
File Size	3.29 MB
Description	Adjustable Frequency Buck or Buck-Boost Pre-Regulator
Datasheet	A4408 Datasheet
Additional preview pages of the A4408 datasheet.

Product details

Description

The A4408 is 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.

Features

Automotive AEC-Q100 qualified.
2.8 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.
Adjustable synchronous buck regulator (1.25 VNOM).
3.3V (3V3) and 5V (V5) internal LDO regulators with foldback short-circuit protections.
5V (V5P) internal tracking LDO regulator with foldback short.

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A4409 - Adjustable Frequency Buck or Buck-Boost Pre-Regulator

Published: Aug 26, 2017 |