LTC3890MPUH#PBF

DC DC Switching Controllers Overview

The LTC3890MPUH#PBF is a high-performance dual step-down switching regulator DC/DC controller from Analog Devices, designed to drive all N-channel synchronous power MOSFET stages. It operates within an input voltage range of 4V to 60V and supports output voltages from 800mV to 24V. The device features a constant frequency current mode architecture with a phase-lockable switching frequency between 105kHz and 835kHz. It delivers up to 15A per channel and includes independent TRACK/SS pins for start-up control. The component is housed in a 32-lead QFN package and operates at temperatures from -55°C to +150°C.

DC DC Switching Controllers Feature Summary

• Minimizes power loss and noise by operating two controller output stages out-of-phase
• Features OPTI-LOOP compensation to optimize transient response over wide capacitance ranges
• Includes independent TRACK/SS pins for controlled ramping during start-up
• Provides current foldback 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 against official documentation to confirm package type and temperature grade. Confirm that the #PBF designation indicates lead-free compliance as per manufacturer standards. Ensure the ordering information matches the exact part number required for your design specifications before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this controller when designing dual-output buck converters requiring low quiescent current and high efficiency. It is suitable for applications needing independent output tracking and soft-start capabilities. Consider its wide input voltage range and robust thermal performance for demanding industrial or automotive environments.

DC DC Switching Controllers Part Context

This component belongs to the PolyPhase series of power management ICs from Analog Devices. It is engineered for high-efficiency synchronous step-down conversion. The device integrates precision references and power good indicators to ensure stable operation across various load conditions and input supply variations.

DC DC Switching Controllers Replacement Considerations

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