LTC3865IUH-1#PBF

DC DC Switching Controllers Overview

The LTC3865IUH-1#PBF is a dual, two-phase synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 24V and supports output voltages from 800mV to 14V. The device delivers up to 25A per phase, utilizing a QFN-28 package. Key electrical parameters include a switching frequency range of 75kHz to 850kHz, a quiescent current of 170uA, and a load regulation of 0.01%. It functions within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Dual independent channels for synchronized or asynchronous operation
• Pin-selectable output voltage configuration options
• Integrated soft-start functionality for controlled power-up sequences
• Low quiescent current design for improved efficiency

DC DC Switching Controllers Applications

• Industrial distributed power systems
• Telecommunications infrastructure equipment
• Point-of-load regulation for high-current digital loads

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific lot traceability requirements prior to ordering. Ensure packaging integrity matches the specified tube format. Cross-reference the full part number including suffixes to match exact electrical and mechanical specifications.

DC DC Switching Controllers Selection Notes

Select this controller when dual-channel high-current buck conversion is required within a 24V input limit. Evaluate thermal management needs based on the 25A per phase capability and QFN-28 footprint. Compare quiescent current and load regulation against system efficiency targets. Ensure the operating temperature range aligns with the intended environmental conditions.

DC DC Switching Controllers Part Context

This component belongs to the LTC3865 series of synchronous step-down controllers. It is designed for applications requiring multiple regulated outputs from a single intermediate bus voltage. The device integrates control logic for external N-channel MOSFETs, enabling flexible power stage configurations.

DC DC Switching Controllers Replacement Considerations

Consult official Analog Devices documentation for verified cross-reference part numbers. Substitution requires matching pinout, electrical ratings, and control interface compatibility.