LTC3887IUJ

DC DC Switching Controllers Overview

The LTC3887IUJ#PBF is a dual-phase synchronous step-down switching controller manufactured by Analog Devices Inc. It operates within a switching frequency range of 250 kHz to 1 MHz and supports output voltages from 500 mV to 5.5 V. The device delivers up to 30 A of output current with a maximum duty cycle of 50%. It features fast rise and fall times of 30 ns each and draws 20 mA in operating power supply current. The component is housed in a QFN-40 package, rated for surface mount installation, and functions reliably across an extended temperature range from -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Supports dual-phase buck topology for high-current applications
• Features digital power management capabilities via I2C/PMBus interfaces
• Includes integrated shutdown functionality for system power control

DC DC Switching Controllers Applications

• Server and workstation voltage regulation modules
• Telecommunications infrastructure power supplies
• Industrial equipment central power distribution

DC DC Switching Controllers Procurement Notes

Verify the specific suffix (e.g., #PBF) against official datasheets to confirm lead-free compliance and RoHS status. Confirm that the requested part number matches the exact package type and temperature grade required for your design. Cross-reference ordering information directly with Analog Devices documentation to ensure accuracy before procurement.

DC DC Switching Controllers Selection Notes

Select this controller when designing systems requiring high efficiency and precise voltage regulation for CPU or FPGA cores. Ensure the external inductor and capacitor values align with the specified 250 kHz to 1 MHz frequency range. Verify that the PCB layout accommodates the QFN-40 package dimensions and thermal requirements for sustained 30 A operation.

DC DC Switching Controllers Part Context

This component belongs to the LTC3887 family of PolyPhase controllers designed for demanding power delivery applications. It complements evaluation boards such as DC1709A and DC2263A series, which are used for performance testing and circuit validation. The device integrates advanced control loops to maintain stability under varying load conditions.

DC DC Switching Controllers Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Generic cross-references may not match the specific digital interface or thermal characteristics.