LT3782EUFD#PBF

Overview

The LT3782EUFD#PBF is a two-phase step-up DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 6 V to 40 V and delivers up to 4 A output current. The device features a programmable switching frequency between 150 kHz and 500 kHz, with a quiescent current of 40 uA. Packaged in a 28-lead QFN (5 mm x 5 mm) with exposed pad, it supports operation from -40°C to +85°C.

Feature Summary

• Two-phase architecture reduces required input and output capacitance
• High current gate driver capability for efficient power stage control
• Programmable soft-start functionality for controlled power-up sequences

Applications

• Industrial power supply systems
• Automotive electronics applications
• Avionics power management circuits

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status and lead-free soldering specifications prior to integration. Ensure storage conditions maintain moisture sensitivity level integrity. Validate datasheet revisions against design requirements.

Selection Notes

Select this controller for high-efficiency boost converter designs requiring reduced passive component counts. The dual-phase operation suits applications demanding low input ripple. Verify thermal performance within the QFN package constraints. Ensure gate drive voltage requirements align with external MOSFET selections.

Part Context

This component belongs to the LT3782 family of synchronous step-up controllers. It complements other Analog Devices power management solutions like the LTC3780 buck-boost controllers. The EUFD suffix indicates a specific temperature grade and tube packaging configuration within the broader product line.

Replacement Considerations

LT3782AIUFD#PBF serves as a verified alternative within the same series. Cross-reference pinout compatibility and electrical specifications before substitution. Verify that thermal characteristics match the original design requirements.