LTC3887EUJ

DC DC Switching Controllers Overview

The LTC3887EUJ is a dual-phase current mode DC/DC controller designed for high-efficiency synchronous buck applications. It features an adjustable switching frequency ranging from 250 kHz to 1 MHz and supports output voltages between 500 mV and 5.5 V with up to 30 A output current capability. The device operates within a temperature range of -40°C to +125°C and utilizes a QFN-40 package. Key electrical parameters include 30 ns rise and fall times, 50% maximum duty cycle, and 20 mA operating supply current.

DC DC Switching Controllers Feature Summary

• Integrates PMBus interface for digital power system management capabilities
• Utilizes dual-phase current mode architecture for phase-lockable operation
• Features independent TRACK/SS pins for synchronized voltage ramping during startup

DC DC Switching Controllers Applications

• Dual output polyphase step-down DC/DC converters
• High current synchronous buck converter designs
• Digital power system management implementations

DC DC Switching Controllers Procurement Notes

Verify the specific suffix designation against official Analog Devices documentation to confirm pinout and functional variations. Ensure compatibility with required thermal dissipation standards for the QFN-40 package. Confirm that the selected variant meets the necessary input voltage and current requirements for the target application design.

DC DC Switching Controllers Selection Notes

Select this component when dual-phase control with digital monitoring is required. Consider the 250 kHz to 1 MHz frequency range for optimizing inductor size versus efficiency. Verify that the 500 mV to 5.5 V output range aligns with load requirements. Evaluate the QFN-40 package constraints for PCB layout and thermal management needs.

DC DC Switching Controllers Part Context

The LTC3887EUJ belongs to the LTC3887 series of dual-phase controllers from Analog Devices. It is part of the PolyPhase family, designed to drive N-channel synchronous MOSFET stages. The device complements other PMIC solutions by offering integrated digital communication alongside standard analog control loops for advanced power regulation tasks.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.