Analog Devices Inc.

LT3958EUHE

LT3958EUHE Description

The LT3958EUHE from Analog Devices Inc. is a versatile, high-performance DC switching voltage regulator designed for demanding power management applications. This IC supports multiple topologies, including Boost, Cuk, Flyback, and SEPIC, making it highly adaptable for various circuit configurations. With an input voltage range of 5V to 80V and an adjustable output voltage ranging from 1.6V to 84V, it delivers a robust 3.3A switch current. The device operates at a switching frequency of 100kHz to 1MHz, enabling efficient power conversion with minimal external components. Packaged in a 36-pin QFN and rated for MSL 1 (Unlimited), it is suitable for surface-mount applications in harsh environments.

LT3958EUHE Features

• Wide Input/Output Range: Supports 5V–80V input and 1.6V–84V output, ideal for high-voltage applications.
• Multi-Topology Support: Configurable for Boost, Cuk, Flyback, and SEPIC topologies, offering design flexibility.
• High Efficiency: Synchronous rectification is not required, simplifying design while maintaining performance.
• Adjustable Frequency: 100kHz–1MHz switching frequency allows optimization for efficiency or component size.
• Compact & Robust: 36QFN package with MSL 1 rating ensures reliability in industrial and automotive environments.

LT3958EUHE Applications

• LED Drivers: High-voltage capability makes it suitable for driving LED arrays in automotive or industrial lighting.
• Battery-Powered Systems: Efficient power conversion for portable or backup power systems with wide input ranges.
• Industrial Power Supplies: Ideal for isolated/non-isolated converters in factory automation or telecom equipment.
• Renewable Energy Systems: Used in solar/wind energy applications requiring stable voltage regulation.

Conclusion of LT3958EUHE

The LT3958EUHE stands out for its versatility, wide voltage range, and multi-topology support, making it a superior choice for complex power management designs. While marked as obsolete, its performance in high-voltage, high-current applications remains unmatched. Engineers seeking a reliable, flexible regulator for LED drivers, industrial systems, or renewable energy will find this IC exceptionally capable. Its compact form factor and robust specs ensure it meets the demands of modern electronics.