LTC3858EUFD-1#TRPBF

DC DC Switching Controllers Overview

The LTC3858EUFD-1#TRPBF is a low quiescent current, dual 2-phase synchronous step-down controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4 V to 38 V and supports output voltages from 800 mV to 24 V. The device delivers up to 25 A per phase and features adjustable switching frequencies between 900 kHz and 1.05 MHz for the first channel, and 350 kHz to 535 kHz for the second. Packaged in a 28-lead QFN (4x4 mm) with exposed pad, it functions within a temperature range of -40°C to +125°C TJ.

DC DC Switching Controllers Feature Summary

• Dual independent channels designed for high-current applications requiring separate regulation paths.
• Integrated low IQ architecture minimizes power consumption during standby or light-load conditions.
• Supports flexible frequency programming to optimize external component size and transient response.

DC DC Switching Controllers Applications

• Point-of-load regulation for processors and memory modules
• Industrial equipment power distribution systems
• Telecommunications infrastructure power supplies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix EUFD-1 against the official datasheet to confirm package type and thermal characteristics. Ensure compatibility with the required operating temperature range and input voltage specifications before integration. Cross-reference the manufacturer's latest documentation for any design changes or obsolescence notices.

DC DC Switching Controllers Selection Notes

Select this component when dual isolated outputs are required from a single high-voltage rail. The wide input range accommodates various bus voltages common in industrial settings. Consider the thermal performance of the QFN package and ensure adequate PCB copper area for heat dissipation under maximum load conditions.

DC DC Switching Controllers Part Context

This part belongs to the LTC3858 family of dual synchronous buck controllers. It shares functional similarities with other members like the LTC3858EGN-1 but differs in package configuration. The EUFD suffix indicates a specific leaded plastic quad flat no-lead package variant optimized for surface mount assembly.

DC DC Switching Controllers Replacement Considerations

LTC3858EGN-1#PBF offers identical electrical performance in a SSOP-28 package. Verify pinout compatibility and thermal resistance differences when substituting packages.