LTC3850EUF#PBF

DC DC Switching Controllers Overview

The LTC3850EUF#PBF is a dual, two-phase synchronous step-down switching controller manufactured by Analog Devices Inc. It operates within an input voltage range of 4V to 24V and supports output voltages from 800mV to 6V. The device delivers up to 25A per channel with a typical static current of 30µA. It features a programmable switching frequency up to 780kHz and utilizes OPTI-LOOP compensation for optimized transient response. Packaged in a 28-pin QFN (4mm x 5mm) suitable for surface mount installation, it functions across a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture with 180-degree phase shift to minimize input capacitance and power supply noise
• OPTI-LOOP compensation technology allows transient response optimization over wide output capacitance and ESR ranges
• Independent soft-start/track pins enable controlled output voltage ramping or synchronized tracking between channels

DC DC Switching Controllers Applications

• Laptop and notebook computer power systems
• Portable instrument power regulation
• Battery-powered digital devices
• DC power distribution architectures

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'EUF' corresponds to the 28-lead QFN package variant when sourcing. Confirm that the operating environment remains within the specified -40°C to +85°C industrial temperature grade. Ensure input voltage does not exceed the 24V limit defined for this specific model version. Cross-reference pinout diagrams with the official datasheet to match PCB footprint requirements accurately before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring high-efficiency dual-rail generation from a single input source. The device is suitable where low quiescent current and precise load regulation are critical. Consider the 28-QFN package constraints for thermal management and board space. Evaluate the need for external N-channel MOSFETs and inductors to complete the power stage design based on target current loads.

DC DC Switching Controllers Part Context

This part belongs to the LTC3850 family of high-performance synchronous buck controllers. It shares architectural similarities with other members like the LTC3850IGN but differs in package type and specific electrical ratings. The EUF designation identifies the quad flat no-lead form factor, distinguishing it from SSOP variants within the same product line.

DC DC Switching Controllers Replacement Considerations

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