A4450 Datasheet Buck-Boost Controller

Manufacturer: Allegro MicroSystems

A4450 buck-boost controller by Allegro MicroSystems - Datasheet Preview

Datasheet Details

Part number	A4450
Manufacturer	Allegro MicroSystems
File Size	3.37 MB
Description	Buck-Boost Controller
Datasheet	A4450 Datasheet

General Description

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, diagnostics, and protection functions.

An enable input to the A4450 is compatible to a high-voltage battery level, (EN).

Overview

A4450 Buck-Boost Controller with Integrated Buck MOSFET.

Key Features

Automotive AEC-Q100 qualified.
Wide operating range of 3 to 36 VIN, 40 VIN maximum, covers automotive stop/start, cold crank, double battery, and load dump.
Regulated output can operate up to 2 A DC.
Adjustable PWM switching frequency: 250 kHz to 2.2 MHz.
PWM frequency can be synchronized to external clock: 250 kHz to 2.4 MHz.
Frequency dithering helps reduce EMI/EMC.
Undervoltage protection.
Pin-to-pin and pin-to-ground to.

More Datasheets from Allegro MicroSystems

Part Number	Description
A4403	Valley Current Mode Control Buck Converter
A4412	Buck or Buck/Boost Pre-Regulator
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