LTC3886IUKG#TRPBF

DC DC Switching Controllers Overview

The LTC3886IUKG#TRPBF 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 and employs a constant-frequency, current-mode architecture. The device supports high voltage input ranging from 4.5 V to 60 V and provides two independent outputs with voltages adjustable from 500 mV to 13.8 V. It delivers up to 15 A output current per phase and operates at switch frequencies between 100 kHz and 750 kHz. The controller includes DCR sense capability for accurate current monitoring and programmable loop compensation. It functions within a temperature range of -40°C to +125°C and is housed in a QFN-52 package.

DC DC Switching Controllers Feature Summary

• Dual PolyPhase architecture with independent channel control
• I2C-based PMBus compliant serial interface for digital power management
• DCR sense capability for precise current monitoring without external shunts
• Programmable loop compensation for stable operation across various load conditions

DC DC Switching Controllers Applications

• High-density server and workstation power distribution
• Industrial equipment requiring isolated or multi-rail power supplies
• Telecommunications infrastructure power systems
• Point-of-load regulation for complex digital logic circuits

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the operating temperature grade matches the 'I' designation for industrial ranges. Ensure compatibility with the intended PCB footprint for the QFN-52 package. Cross-reference the datasheet revision date to confirm feature availability. Validate that the supplier provides genuine Analog Devices components to avoid counterfeit risks.

DC DC Switching Controllers Selection Notes

Select this component when dual independent buck channels are required with digital control capabilities. The wide input voltage range suits applications with varying supply rails. Consider the thermal performance of the QFN-52 package for high-current designs. Verify that the target application can accommodate the necessary external inductors and capacitors for the chosen switching frequency. Ensure the design utilizes the DCR sensing requirements if implemented.

DC DC Switching Controllers Part Context

This part belongs to the LTC3886 series of dual synchronous step-down controllers. It shares architectural similarities with other PolyPhase controllers but distinguishes itself through integrated PMBus support and DCR sensing. The series targets high-performance power management needs where digital communication and efficiency are critical. Other variants may differ in package type or temperature rating.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other Analog Devices dual buck controllers with PMBus interfaces. Verify pinout compatibility before replacing similar models. Check if alternative parts support the same input voltage range and output current requirements. Ensure the replacement maintains the required switching frequency range and thermal characteristics.