Analog Devices Inc. Tariff Inquiry

LTC3828EUH

LTC3828EUH Description

The LTC3828EUH from Analog Devices Inc. is a high-performance, dual-output buck switching controller designed for demanding power management applications. Operating within a 4.5V to 28V input range, it delivers efficient power conversion with a switching frequency adjustable between 260kHz and 550kHz. This obsolete but robust IC features a transistor driver output configuration, supporting synchronous rectification for improved efficiency. Its 2-phase operation reduces input ripple current, making it ideal for high-current applications. The device includes advanced control features like enable, phase control, power good, and tracking, ensuring precise power delivery and system reliability.

LTC3828EUH Features

• Dual-Output Buck Controller: Supports two independent outputs with a 99.4% max duty cycle for wide input/output voltage ranges.
• Synchronous Rectification: Enhances efficiency by minimizing conduction losses.
• Advanced Control Features: Includes enable/disable, phase control, power good signal, and tracking for flexible power sequencing.
• Low Ripple Design: 2-phase operation reduces input capacitor requirements and EMI.
• Wide Input Range: 4.5V–28V supply compatibility suits diverse applications.
• Surface-Mount Package: Housed in a Tube-packaged QFN for compact PCB integration.

LTC3828EUH Applications

• High-Current Power Supplies: Ideal for servers, telecom equipment, and industrial systems requiring low-noise, multi-rail power.
• Distributed Power Architectures: Efficiently powers FPGAs, ASICs, and processors with precise voltage tracking.
• Automotive & Aerospace Systems: Robust performance under wide input voltage fluctuations.
• Battery-Powered Devices: Optimized for portable instruments due to its high efficiency and low standby current.

Conclusion of LTC3828EUH

The LTC3828EUH stands out for its dual-output flexibility, high efficiency, and advanced control features, making it a strong choice for complex power systems. While marked obsolete, its 2-phase operation and synchronous rectification ensure superior performance in high-current applications. Engineers designing multi-rail power solutions or noise-sensitive systems will find its feature set highly advantageous. For legacy or specialized designs, this controller remains a reliable option despite its discontinued status.