A4490EESTR-T - Allegro MicroSystems

Manufacturer Part Number

A4490EESTR-T

Manufacturer

Allegro Microsystems

Introduction

A high-efficiency step-down DC-DC switching regulator

Product Features and Performance

Adjustable output voltage from 0.8V to 30.6V

Input voltage range from 4.5V to 34V

Three output channels for multi-output voltage requirements

Buck topology for efficient down-converting

Functioning without a synchronous rectifier

Supports 550kHz switching frequency

Product Advantages

Highly efficient power conversion

Wide input voltage range catering to various applications

Flexible output voltage adjustment for diverse uses

Surface mount technology compatible for modern circuit boards

Multi-output capability reducing component count

Key Technical Parameters

Topology: Buck

Adjustable output voltage range: 0.8V to 30.6V

Input voltage range: 4.5V to 34V

Switching frequency: 550kHz

Operating temperature range: -40°C to 85°C

Quality and Safety Features

Built for operating in extreme temperature conditions

Robust surface mount package for secure PCB mounting

Compatibility

Surface Mount compatible with 20-WFQFN Exposed Pad

20-QFN-EP (4x4) device packaging suitable for various PCB designs

Application Areas

Consumer electronics

Industrial power systems

Automotive industry

Communication equipment

Computing devices

Product Lifecycle

Product status: Active

Not indicated as nearing discontinuation

Potential future availability of replacements or upgrades not explicitly stated

Several Key Reasons to Choose This Product

Wide input voltage range allows for use in variable power environments

Adjustable output voltage provides design flexibility

The ability to supply multiple voltages with three outputs simplifies power design

High efficiency reduces thermal issues and maximizes battery life

Surface mounting technology aligns with modern electronic production standards

Operates effectively across a broad temperature range, enhancing reliability in demanding conditions