LTC3870EUF-1#TRPBF

DC DC Switching Controllers Overview

The LTC3870EUF-1#TRPBF is a PolyPhase step-down slave controller designed for multiphase 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 provides two outputs capable of driving up to 20 A per phase, with a switchable frequency between 100 kHz and 1 MHz. It functions in a QFN-24 package, operating reliably across a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Designed as a PolyPhase slave controller for cascading with master controllers like the LTC3887-1 to supply very large currents.
• Supports multiphase operation specifically optimized for integration with digital power system management DC/DC controllers.
• Provides a small and cost-effective solution for high-current applications through efficient phase interleaving.

DC DC Switching Controllers Applications

• Digital power systems requiring high current delivery
• Cascaded multi-phase buck converter architectures
• Server and workstation power distribution modules

DC DC Switching Controllers Procurement Notes

Verify that the specific suffix #TRPBF corresponds to tape and reel packaging when sourcing, as standard datasheets may reference tube packaging variants. Confirm compatibility with the intended master controller, such as the LTC3887-1, to ensure proper PolyPhase synchronization and current sharing functionality in the final design.

DC DC Switching Controllers Selection Notes

Select this component when a dedicated slave controller is required to expand the phase count of a digital power architecture. Ensure the application demands an input voltage up to 60 V and requires precise phase alignment with a master PMIC. This part is suitable for designs prioritizing high current density and simplified control loop management through digital interfacing.

DC DC Switching Controllers Part Context

This component belongs to the LTC3870-1 series, which specializes in PolyPhase buck slave control. It complements Analog Devices' portfolio of digital power controllers by providing scalable current capability without increasing the complexity of the master controller's interface requirements.

DC DC Switching Controllers Replacement Considerations

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