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LT3479EDE

LT3479EDE Description

The LT3479EDE from Analog Devices Inc. is a high-performance, adjustable-output DC-DC boost switching regulator designed for demanding power management applications. Housed in a compact 14-DFN package, it supports a wide input voltage range of 2.3V to 24V and delivers up to 3A switch current, making it suitable for both low and high-voltage systems. The output voltage is adjustable from 1.235V to 42V, providing flexibility for diverse circuit requirements. With a switching frequency range of 200kHz to 3.5MHz, it allows for optimization between efficiency and component size. This regulator features a positive or negative output configuration, enabling it to cater to unique design needs.

LT3479EDE Features

• Wide Input Range (2.3V–24V): Ideal for battery-powered and industrial applications.
• High Output Voltage (Up to 42V): Supports high-voltage loads such as LED drivers and industrial sensors.
• Adjustable Frequency (200kHz–3.5MHz): Enables trade-offs between efficiency and external component size.
• Single Output with 3A Switch Current: Delivers robust power for demanding loads.
• Non-Synchronous Rectification: Simplifies design while maintaining efficiency.
• Surface-Mount DFN Package: Compact footprint for space-constrained PCB layouts.
• Obsolete Status: May require alternative sourcing for new designs but remains viable for legacy systems.

LT3479EDE Applications

The LT3479EDE excels in applications requiring efficient step-up voltage conversion, including:

• LED Drivers: Powers high-brightness LEDs in automotive and display systems.
• Industrial Power Supplies: Supports sensors, actuators, and control systems.
• Battery-Powered Devices: Extends battery life in portable equipment with low-voltage inputs.
• Telecom and Networking Equipment: Provides stable voltage for communication modules.
• Medical Devices: Ensures reliable power in diagnostic and monitoring tools.

Conclusion of LT3479EDE

The LT3479EDE is a versatile boost regulator offering a blend of wide input range, high output voltage, and adjustable switching frequency, making it suitable for diverse power management challenges. While marked as obsolete, its performance characteristics ensure continued relevance in LED lighting, industrial systems, and portable electronics. Engineers should evaluate alternative models for new designs but can leverage this IC for legacy or specialized applications requiring its unique capabilities.