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A4447

Part Number	A4447
Manufacturer	Allegro Micro Systems
Description	High Voltage Step Down Regulator
Published	Jul 14, 2009
Detailed Description	A4447 High-Voltage Stepdown Regulator FEATURES AND BENEFITS ▪ Wide input voltage range: 8 to 50 V ▪ Integrated low RDS(...
Datasheet	A4447 PDF File

Overview

A4447 High-Voltage Stepdown Regulator FEATURES AND BENEFITS ▪ Wide input voltage range: 8 to 50 V ▪ Integrated low RDS(on) DMOS switch ▪ 2 A continuous output current ▪ Adjustable fixed off-time ▪ Highly efficient ▪ Adjustable output: 0.
8 to 24 V ▪ Small package with exposed thermal pad PACKAGE: 8-pin SOIC with exposed thermal pad (suffix LJ) Not to scale DESCRIPTION The A4447 is a 2 A, high efficiency general-purpose buck regulator designed for a wide variety of applications.
The output voltage is adjustable from 0.
8 to 24 V, based on a resistor divider and the 0.
8 V ± 2 % reference.
External components include an external clamping diode, inductor, and filter capacitor.
The off-time is de...

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