LTC3617EUDD

Special Purpose Regulators Overview

The LTC3617EUDD is a monolithic synchronous step-down DC/DC regulator designed for DDR termination. It operates with an input voltage range of 2.25 V to 5.5 V and provides a fixed output voltage of 0.9 V. The device supports bidirectional current flow, capable of sourcing and sinking up to 6 A. It utilizes a buck topology with a switching frequency of 1 MHz. This component is intended for use in computer systems requiring efficient power delivery to double-data-rate memory.

Special Purpose Regulators Feature Summary

• Monolithic synchronous step-down architecture optimized for DDR termination applications
• Bidirectional output capability allowing both sourcing and sinking of high current loads
• Integrated control loop supporting stable operation across specified input voltage ranges

Special Purpose Regulators Applications

• Double-data-rate (DDR) memory termination in computer systems
• High-efficiency point-of-load regulation for digital logic supplies
• Evaluation of synchronous buck converter performance in low-voltage environments

Special Purpose Regulators Procurement Notes

Verify the specific suffix EUDD against the manufacturer's official datasheet to confirm package type and temperature grade. Ensure compatibility with the intended PCB footprint and thermal requirements. Confirm that the component meets all necessary environmental compliance standards required for your specific deployment region before finalizing procurement.

Special Purpose Regulators Selection Notes

Select this component when designing systems requiring precise DDR termination voltages with high transient response capabilities. Consider the 6 A bidirectional current rating for memory loads that demand rapid current absorption during data transitions. Evaluate the 1 MHz switching frequency against electromagnetic interference constraints and passive component size requirements for the target application.

Special Purpose Regulators Part Context

This part belongs to the LTC3617 series of power management ICs from Analog Devices. It is specifically engineered as a specialized DC/DC converter for memory subsystems. The device integrates power switches and control circuitry into a single compact package, simplifying design implementation compared to discrete solutions while maintaining high efficiency and reliability for critical computing applications.

Special Purpose Regulators Replacement Considerations

Consult official Analog Devices documentation for qualified alternatives within the same product family. Verify pinout compatibility and electrical specifications before substituting any other regulator IC. Cross-reference package dimensions and thermal characteristics to ensure mechanical fit without redesigning the printed circuit board layout.