LTC3869IUF#PBF

DC DC Switching Controllers Overview

The LTC3869IUF#PBF is a dual, high-efficiency synchronous step-down DC/DC controller from Analog Devices. It features an integrated 2x PolyPhase architecture designed for single-output applications. The device supports input voltages from 4V to 38V and delivers up to 30A of output current. It operates with a fixed switching frequency range of 450kHz to 550kHz. The controller provides precise voltage regulation with outputs adjustable from 600mV to 12.5V. It includes low quiescent current operation at 30µA and functions within a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Integrates dual-phase PolyPhase control for enhanced current sharing and transient response
• Supports wide input voltage range suitable for various bus architectures
• Features low static current consumption for improved efficiency in standby modes

DC DC Switching Controllers Applications

• Intel mobile CPU core voltage regulation
• General-purpose point-of-load (POL) power supplies
• High-density distributed power systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm availability status as distribution channels may list limited stock or obsolescence notices. Ensure the SSOP-28 package variant matches your PCB footprint requirements before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring high current density and tight load regulation. The fixed frequency operation simplifies EMI filter design compared to variable frequency controllers. Consider thermal management capabilities given the 30A output capability and SSOP-28 package constraints.

DC DC Switching Controllers Part Context

This part belongs to the LTC3869 series of PolyPhase controllers. It is distinct from other variants like the LTC3867 or LTC3868 which may offer different pin counts, input ranges, or phase configurations. The IUF suffix specifically denotes the industrial temperature grade and SSOP-28 package type.

DC DC Switching Controllers Replacement Considerations

LTC3869IGN-2#PBF offers identical electrical specifications but utilizes an SSOP-28 package instead of QFN. Verify pinout compatibility and thermal performance differences between the SSOP-28 and QFN packages before substituting.