LTC3892IFE-1

DC DC Switching Controllers Overview

The LTC3892IFE-1 is a high-performance dual step-down DC/DC switching regulator controller designed to drive all N-channel synchronous power MOSFET stages. It features an input voltage range of 4.5V to 60V and supports output voltages from 800mV to 59.4V. The device operates with a switch frequency between 105kHz and 835kHz, delivering up to 25A total output current. It utilizes out-of-phase operation to minimize power loss and noise, with a typical quiescent current of 34µA. The component is housed in a 28-TSSOP-EP package.

DC DC Switching Controllers Feature Summary

• Drives all N-channel synchronous power MOSFET stages for efficient buck conversion
• Minimizes power loss and noise through out-of-phase operation of two controller output stages
• Features adjustable gate drive voltage to optimize efficiency with logic or standard level FETs
• Includes internal switches in the high-side gate driver eliminating the need for external bootstrap diodes

DC DC Switching Controllers Applications

• Automotive and industrial power systems
• Distributed DC power systems
• High-voltage battery-powered systems

DC DC Switching Controllers Procurement Notes

Verify availability status as the part may be discontinued or subject to limited supply. Confirm the specific suffix matches the required pinout and electrical characteristics. Check for direct replacements if original stock is unavailable. Ensure the package type aligns with existing PCB footprints. Validate RoHS compliance and environmental ratings for the target application.

DC DC Switching Controllers Selection Notes

Select this controller when a wide input voltage range up to 60V is required for dual-output buck applications. Consider the TSSOP-EP package for thermal performance and space constraints. Evaluate the need for out-of-phase operation to reduce input capacitor requirements and system noise. Verify that the target MOSFETs are compatible with the adjustable gate drive levels provided by the OPTI-DRIVE feature.

DC DC Switching Controllers Part Context

The LTC3892IFE-1 belongs to the LTC3892 family of dual synchronous step-down controllers from Analog Devices. This series is engineered for high-efficiency power management in demanding environments. The -1 suffix typically denotes specific package and temperature grade variations within the broader product line, sharing core control architecture with other variants like the QFN-packaged versions.

DC DC Switching Controllers Replacement Considerations

LTC3892IFE-1#PBF is listed as a direct replacement option.