LTC3862EUH-2

DC DC Switching Controllers Overview

The LTC3862EUH-2#PBF is a dual-phase current mode step-up DC/DC controller manufactured by Analog Devices Inc. It operates within an input voltage range of 5.5 V to 36 V and supports Boost and SEPIC topologies. The device features a fixed switching frequency of 300 kHz, with an adjustable range from 75 kHz to 500 kHz. It provides two positive outputs and includes clock synchronization capabilities. The controller is housed in a 24-lead QFN package (5x5 mm) with an exposed pad, designed for surface mount installation. It functions reliably across an operating temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Supports multi-phase operation for high-current boost and SEPIC applications
• Enables precise load sharing through integrated phase control mechanisms
• Offers flexible frequency adjustment and external clock synchronization
• Integrates soft-start functionality to manage inrush currents during startup

DC DC Switching Controllers Applications

• Low emissions diesel fuel injector actuator power supplies
• Industrial distributed power systems requiring high efficiency
• Automotive electronics demanding robust voltage regulation
• General purpose step-up DC/DC converter designs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix and package variant against official Analog Devices documentation before ordering. Confirm that the required thermal performance and pinout match the design requirements. Check for any recent product change notices regarding epoxy or wire changes. Ensure compatibility with intended evaluation boards such as DC2006A series if testing is planned. Validate availability status through authorized distributors as supply constraints may exist.

DC DC Switching Controllers Selection Notes

Select this component when designing systems requiring dual-phase boost conversion with synchronized operation. Consider the 5.5 V minimum input voltage constraint for low-voltage sources. Evaluate the need for external MOSFETs as this is a controller without integrated switches. Assess thermal management needs due to the QFN package's reliance on board copper for heat dissipation. Compare against other family members if different temperature ranges or packages are preferred.

DC DC Switching Controllers Part Context

This part belongs to the LTC3862 family of multi-phase controllers. It shares core architecture with variants like the LTC3862EFE-2#PBF but differs in package type. The EUH suffix denotes the 24-lead QFN form factor. Other family members include TSSOP versions and industrial grade variants with extended temperature ranges. All share similar electrical characteristics and control logic.

DC DC Switching Controllers Replacement Considerations

LTC3862EFE-2#PBF offers identical electrical performance in a 24-TSSOP package. LTC3862IUH#PBF provides similar functionality but lacks the '-2' suffix indicating dual-phase capability in some contexts, though it shares the QFN package. Verify pin-to-pin compatibility and thermal resistance differences when substituting.