LTC3634IUFD#TRPBF

Special Purpose Regulators Overview

The LTC3634IUFD#TRPBF is a monolithic synchronous step-down DC/DC converter designed for DDR power applications. It integrates two high-efficiency buck regulators within a compact QFN-28 package. The device supports an input voltage range from 3.6 V to 15 V, delivering up to 3 A per channel with adjustable output voltages between 600 mV and 3 V. Key electrical specifications include a fixed switching frequency of 4 MHz, low quiescent current of 15 uA, and operation across a temperature range of -40°C to +125°C.

Special Purpose Regulators Feature Summary

• Integrates two independent synchronous buck converters in a single monolithic package
• Supports wide input voltage range suitable for various system power rails
• Features low quiescent current for improved efficiency during light load conditions
• Includes programmable soft-start and tracking capabilities for controlled power sequencing

Special Purpose Regulators Applications

• DDR memory power supply systems
• Portable computing devices requiring efficient multi-rail power management
• Industrial equipment with strict size constraints
• Telecommunications infrastructure power distribution

Special Purpose Regulators Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the IUFD designation corresponds to the industrial temperature grade and QFN-28 footprint required for your design. Cross-reference the manufacturer's latest datasheet to ensure compliance with RoHS directives and material declarations before finalizing procurement specifications.

Special Purpose Regulators Selection Notes

Select this component when dual-channel buck regulation is required within a limited board area. The 4 MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Ensure the thermal design accommodates the QFN-28 package characteristics for reliable operation at maximum load currents within the specified temperature range.

Special Purpose Regulators Part Context

This part belongs to the LTC3634 family of power management ICs from Analog Devices. It is specifically engineered to address the power delivery needs of modern memory architectures. The device complements other PMIC solutions by offering integrated synchronization and precise voltage regulation in a space-saving form factor.

Special Purpose Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing bill of materials before considering alternative sources or pin-compatible variants.