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A4450

Part Number	A4450
Manufacturer	Allegro
Description	Buck-Boost Controller
Published	Dec 3, 2016
Detailed Description	A4450 Buck-Boost Controller with Integrated Buck MOSFET FEATURES AND BENEFITS • Automotive AEC-Q100 qualified • Wide op...
Datasheet	A4450 PDF File

Overview

A4450 Buck-Boost Controller with Integrated Buck MOSFET FEATURES AND BENEFITS • 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 tolerant at every pin • Thermal shutdown protection • Operating junction temperature range −40°C to 150°C PACKAGES: 20-pin 4 × 4 mm QFN (ES) with wettable flank Not to scale DESCRIPTION ...

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