LTC3890EGN-3#TRPBF

DC DC Switching Controllers Overview

The LTC3890EGN-3#TRPBF is a dual-output synchronous step-down DC/DC controller from Analog Devices Inc., designed for high-efficiency power conversion. It operates with an input voltage range of 4V to 60V and supports switching frequencies between 105kHz and 835kHz. The device features a maximum duty cycle of 99% and utilizes a 32-WFQFN package with exposed pad. It includes control characteristics such as current limiting, enable, frequency control, phase control, power good indication, soft start, and tracking capabilities.

DC DC Switching Controllers Feature Summary

• Dual output configuration supporting independent or synchronized operation
• Integrated OPTI-LOOP compensation for optimized transient response across varying capacitance values
• Low quiescent current architecture extending battery life in portable applications
• Current foldback protection to limit MOSFET heat dissipation during short-circuit conditions

DC DC Switching Controllers Applications

• Automotive always-on systems
• Battery-operated digital devices
• Distributed DC power systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'EGN-3' against official Analog Devices documentation to confirm pinout compatibility and thermal performance specifications. Ensure the ordering part number matches the exact package type and temperature grade required for your design. Cross-reference datasheet revision history for any recent manufacturing changes that may affect mechanical dimensions or electrical parameters before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this component when designing systems requiring dual isolated or non-isolated outputs from a wide input voltage range up to 60V. Consider its low IQ feature for battery-powered applications where standby power consumption is critical. Evaluate the need for external components based on the desired switching frequency and output current requirements. Verify that the chosen topology aligns with the controller's synchronous buck architecture and drive capabilities.

DC DC Switching Controllers Part Context

This controller belongs to the PolyPhase series, which emphasizes high efficiency and low noise through multiphase operation. The LTC3890 family is engineered for demanding industrial and automotive environments, offering robust protection features and precise regulation. Its design facilitates compact solutions by minimizing external component count while maintaining high performance standards.

DC DC Switching Controllers Replacement Considerations

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