LTC3884ERHE#PBF

DC DC Switching Controllers Overview

The LTC3884ERHE-1#PBF is a dual output synchronous step-down DC/DC controller from Analog Devices. It operates with an input voltage range of 4.5V to 38V and supports output voltages from 500mV to 5.5V. The device delivers up to 30A per channel and features a fixed switching frequency of 1MHz. It utilizes a GQFN-48 package and functions within a temperature range of -40°C to +125°C. Key electrical parameters include a maximum duty cycle of 80%, rise and fall times of 30ns, and a supply current of 25mA.

DC DC Switching Controllers Feature Summary

• Supports sub-milliohm DCR current sensing for high efficiency
• Features I2C/PMBus digital interface for configuration
• Enables parallel operation with low phase-to-phase current mismatch

DC DC Switching Controllers Applications

• FPGA power supplies
• ASIC power supplies
• Processor power delivery
• Redundant (n+1) power systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix '-1' in the part number against official documentation to confirm pinout or feature variations. Ensure the GQFN-48 package compatibility matches your PCB footprint. Confirm RoHS compliance status through the manufacturer's datasheet before finalizing procurement specifications.

DC DC Switching Controllers Selection Notes

Select this component when high current density and precise load regulation are required. The integrated digital interface allows for remote monitoring and system optimization. Consider the thermal performance of the GQFN-48 package for your specific enclosure constraints. Verify that the 1MHz frequency aligns with your EMI requirements and inductor selection.

DC DC Switching Controllers Part Context

This device belongs to the LTC3884 series of PolyPhase buck controllers. It is designed for applications requiring multiple high-current outputs from a single controller. The series emphasizes digital control capabilities and high efficiency through advanced current sensing techniques.

DC DC Switching Controllers Replacement Considerations

Consult official substitution lists for verified alternatives. Generic replacements may lack the specific digital interface or current sensing accuracy.