LTC3880IUJ#PBF

DC DC Switching Controllers Overview

The LTC3880IUJ#PBF is a dual PolyPhase DC/DC synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It features an I2C-based PMBus compliant serial interface for digital power system management. The device operates with a supply voltage range of 4.5V to 24V and supports switching frequencies from 250kHz to 1MHz. It utilizes a 40-QFN (6x6) package and includes control characteristics such as current limiting, enable, frequency control, phase control, power good indication, and soft start.

DC DC Switching Controllers Feature Summary

• Dual output capability with integrated PolyPhase technology for synchronized multi-phase operation
• Digital power system management via I2C-based PMBus compliant serial interface
• Constant frequency current mode architecture supporting clock synchronization

DC DC Switching Controllers Applications

• Dual output PolyPhase DC/DC synchronous step-down switching regulator designs
• Digital power system management applications requiring PMBus communication
• High-efficiency multi-phase buck converter topologies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free RoHS compliance when ordering. Confirm the IUJ package designation matches the required 40-QFN (6x6) footprint for PCB layout compatibility. Ensure the industrial temperature grade aligns with the target operating environment specifications before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring independent dual-channel control with digital monitoring capabilities. The I2C/PMBus interface allows for precise configuration and telemetry without external logic. Consider the 40-pin QFN package constraints for thermal dissipation and board space requirements compared to single-channel alternatives.

DC DC Switching Controllers Part Context

This part belongs to the LTC3880 family of dual channel controllers within the Analog Devices portfolio. It is designed to drive N-channel synchronous power MOSFET stages in high-performance power supplies. The device complements other members like the LTC3880-1 and development tools such as the DC1709A programming board.

DC DC Switching Controllers Replacement Considerations

The LTC3880EUJ#PBF serves as a commercial grade alternative within the same package and pinout configuration. Verify that the extended temperature range of the IUJ suffix meets the application requirements if replacing with the EUJ variant.