LTC3882IUJ#PBF

DC DC Switching Controllers Overview

The LTC3882IUJ#PBF is a dual-channel PolyPhase DC/DC synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It utilizes a voltage mode architecture with leading-edge modulation to ensure excellent transient response and output regulation. The device operates within an input voltage range of 3V to 13.2V and supports output voltages from 500mV to 5.25V. It features a fixed switching frequency of 1.25MHz and can drive external power stages delivering up to 40A per channel. The component is housed in a 40-lead QFN package rated for operation between -40°C and +125°C.

DC DC Switching Controllers Feature Summary

• Dual-channel PolyPhase architecture for high-current distribution
• Voltage mode control with leading-edge modulation
• Integrated PMBus compliant serial interface
• Supports clock synchronization capabilities

DC DC Switching Controllers Applications

• High-density point-of-load (POL) conversion
• FPGA core voltage regulation
• Industrial distributed power systems
• Telecommunications infrastructure power supplies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix designation on purchase orders, as the IUJ variant differs from the EUJ version regarding switching frequency specifications. Confirm availability status directly with authorized distributors, as supply constraints may apply to this specific part number. Ensure that the required thermal performance matches the application environment before finalizing procurement decisions.

DC DC Switching Controllers Selection Notes

Select this controller when designing systems requiring precise current sharing across multiple phases without external sensing resistors. The 1.25MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 40-QFN package for applications demanding compact footprints and efficient heat dissipation through the exposed pad.

DC DC Switching Controllers Part Context

This component belongs to the LTC3882 family of PolyPhase controllers designed for high-efficiency power management. It complements other single-phase or multi-phase solutions by providing scalable power delivery. The device integrates essential protection features and communication protocols suitable for modern digital power systems requiring remote monitoring and configuration.

DC DC Switching Controllers Replacement Considerations

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