LTC3779IFE#TRPBF

DC DC Switching Controllers Overview

The LTC3779IFE#TRPBF is a synchronous Buck-Boost DC/DC switching controller manufactured by Analog Devices Inc. It operates within an input voltage range of 4.5V to 150V and supports output voltages from 1.2V to 150V. The device features a programmable switching frequency adjustable between 50kHz and 600kHz, with a maximum duty cycle of 90%. It utilizes a 38-TSSOP package with an exposed pad for thermal management. The controller includes integrated soft-start, current limit, and power good functions, operating reliably across a junction temperature range of -40°C to 125°C.

DC DC Switching Controllers Feature Summary

• Supports wide input and output voltage ranges up to 150V for flexible power architecture design
• Integrates synchronous rectification control for enhanced efficiency in buck, boost, and buck-boost topologies
• Includes built-in protection and control features such as soft-start, current limiting, and power good signaling

DC DC Switching Controllers Applications

• Industrial power supplies requiring wide input voltage tolerance
• Battery-powered systems with varying cell counts or discharge curves
• Automotive electronics subject to load dump and wide supply variations
• Telecommunications infrastructure equipment

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm that the 38-TSSOP-EP package matches your PCB footprint requirements, particularly regarding the exposed thermal pad dimensions. Ensure component authenticity through authorized channels to guarantee performance specifications are met.

DC DC Switching Controllers Selection Notes

Select this controller for applications demanding high input voltage capability combined with buck-boost flexibility. Consider the external MOSFET selection carefully to handle the 150V rating and required current levels. Evaluate thermal dissipation needs due to the TSSOP package constraints under heavy load conditions.

DC DC Switching Controllers Part Context

This component belongs to the LTC3779 family of synchronous Buck-Boost controllers designed for high-voltage applications. It complements other Analog Devices power management solutions by providing versatile topology support. The part is distinct from standard buck-only regulators due to its ability to manage both step-up and step-down operations seamlessly.

DC DC Switching Controllers Replacement Considerations

Direct pin-to-pin replacements should be verified against official Analog Devices substitution lists. Alternative parts must match the 150V rating and 38-TSSOP-EP package. Cross-reference electrical parameters such as switching frequency range and duty cycle limits before integration.