LTC3876EUHF#TRPBF

Special Purpose Regulators Overview

The LTC3876EUHF#TRPBF is a dual DC/DC controller designed for DDR power applications, featuring differential VDDQ sensing and a dedicated 50mA VTT reference. It operates with an input voltage range of 4.5V to 38V and supports output voltages from 1V to 2.5V. The device delivers up to 20A per channel across three outputs and functions at a switching frequency of 2MHz. It includes shutdown capabilities and maintains a load regulation of -1.5%. Operating temperatures span from -40°C to +125°C within a TSSOP-EP-38 package.

Special Purpose Regulators Feature Summary

• Integrates differential VDDQ sensing for precise memory voltage regulation
• Includes a dedicated 50mA VTT termination reference generator
• Supports high-current dual-channel buck topology for processor power

Special Purpose Regulators Applications

• DDR memory power supply systems
• High-performance computing platforms
• Server and workstation motherboard designs

Special Purpose Regulators Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and electrical characteristics match the EUHF variant. Confirm RoHS compliance status through current datasheets. Check for obsolescence notices or lifecycle changes directly from the manufacturer before finalizing procurement plans.

Special Purpose Regulators Selection Notes

Select this component when designing DDR power architectures requiring integrated VTT generation and differential feedback for noise immunity. Ensure the design accommodates the 4.5V to 38V input range and utilizes external MOSFETs capable of handling 20A per phase. Verify thermal management requirements for the TSSOP-EP-38 package under maximum load conditions.

Special Purpose Regulators Part Context

This part belongs to the LTC3876 series of synchronous step-down controllers optimized for complex power delivery networks in modern digital systems. It addresses the specific needs of DDR memory interfaces by combining core voltage regulation with termination control in a single IC solution.

Special Purpose Regulators Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Cross-reference pinouts and electrical specifications carefully if considering family members like the LTC3876EFE.