LTC3829EUHF#PBF

DC DC Switching Controllers Overview

The LTC3829EUHF#PBF is a synchronous step-down switching controller from Analog Devices, designed for high-current applications. It features three independent output channels with a total current capacity of 90 A. The device operates within an input voltage range of 4.5 V to 38 V and supports adjustable switching frequencies between 250 kHz and 770 kHz. Output voltages are programmable from 600 mV to 5 V. Packaged in a 38-lead QFN (5x7 mm) with an exposed pad, it functions across a junction temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Supports three-phase PolyPhase operation to distribute load current across multiple phases
• Includes integrated soft-start and tracking capabilities for controlled power-up sequences
• Features cycle-by-cycle current limit protection to safeguard against short-circuit conditions

DC DC Switching Controllers Applications

• High-performance computing systems requiring multi-rail power delivery
• Industrial distributed power architectures
• Telecommunications infrastructure equipment

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Confirm that the 38-QFN package dimensions match the target PCB footprint. Ensure the selected switching frequency configuration aligns with external component ratings. Validate thermal requirements for the exposed pad connection during assembly.

DC DC Switching Controllers Selection Notes

Select this controller when designing systems requiring up to 90 A of continuous output current. Consider the 38-QFN package for compact board layouts compared to larger TSSOP options. Evaluate the need for phase synchronization if integrating with other controllers in complex power trees. Assess input voltage stability to ensure operation remains within the 4.5 V to 38 V specification.

DC DC Switching Controllers Part Context

This component belongs to the LTC3829 series of PolyPhase controllers, which are optimized for delivering high currents efficiently. It complements other Analog Devices PMIC solutions by providing scalable power management for demanding digital loads. The series emphasizes thermal performance and transient response through multi-phase architecture.

DC DC Switching Controllers FAQ

What is the maximum output current capability of the LTC3829EUHF#PBF?

The controller supports a total output current of 90 A across its three phases.

Does the LTC3829EUHF#PBF support clock synchronization?

No, official specifications indicate that clock synchronization is not supported for this part number.