LTC3870EUFD#TRPBF

DC DC Switching Controllers Overview

The LTC3870EUFD#TRPBF is a multiphase step-down slave controller from Analog Devices, designed for PolyPhase operation with digital power system management DC/DC controllers. It operates within an input voltage range of 4.5 V to 60 V and supports output voltages from 500 mV to 14 V. The device features a switch frequency adjustable between 100 kHz and 1 MHz. It provides two outputs capable of handling up to 20 A each. Operating temperatures range from -40°C to +125°C. The component is housed in a 28-WFQFN package.

DC DC Switching Controllers Feature Summary

• Designed for multiphase operation with digital power system management DC/DC controllers
• Supports cascading with master controllers to supply very large currents
• Provides a small and cost-effective solution for high-current applications

DC DC Switching Controllers Applications

• Digital power system management DC/DC controllers
• High-efficiency step-down converters
• Multiphase buck converter designs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the EUF designation corresponds to the extended temperature range (-40°C to +125°C). Ensure compatibility with the intended master controller, such as the LTC3887-1, for proper PolyPhase synchronization. Check current availability status as distribution may vary by region.

DC DC Switching Controllers Selection Notes

Select this slave controller when integrating with a compatible master controller to achieve high current delivery through multiphase operation. Consider the 4.5 V to 60 V input range and 500 mV to 14 V output capability against load requirements. Evaluate the need for digital power system management integration. Verify that the 28-WFQFN package fits the PCB layout constraints.

DC DC Switching Controllers Part Context

This component belongs to the LTC3870 series of PolyPhase step-down slave controllers. It is part of Analog Devices' portfolio for managing high-current digital power systems. The EUFD#TRPBF variant specifies the extended temperature grade, QFN package, and tape-and-reel shipping format.

DC DC Switching Controllers Replacement Considerations

LTC3870EUF-1#PBF is a related variant within the same family.