LTC3897EUHF#PBF

DC DC Switching Controllers Overview

The LTC3897EUHF#PBF is a synchronous boost DC/DC controller featuring a surge stopper and ideal diode controller. It operates with an input voltage range of 6V to 48V, delivering up to 4A output current at 48V in two-phase configurations. The device supports a switching frequency range from 75kHz to 850kHz and functions within a junction temperature range of -40°C to +125°C. Packaged in a 38-WFQFN (5x7mm) exposed pad housing, it provides constant frequency current mode control for high-efficiency power conversion.

DC DC Switching Controllers Feature Summary

• Integrates a surge stopper for robust input voltage surge protection
• Includes an ideal diode controller for reverse input protection
• Supports multi-phase operation for scalable current delivery
• Provides overcurrent protection capabilities

DC DC Switching Controllers Applications

• High efficiency two-phase 48V boost converter designs
• Non-synchronous 107V/1.5A two-phase boost converters
• Four-phase 480W single output boost regulators
• Systems requiring startup performance with input supply down to 2.3V after start-up

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and electrical characteristics. Ensure compatibility with required thermal management solutions for the QFN-38 package. Confirm that the selected configuration meets the necessary input voltage and current requirements for the target application before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring wide input voltage ranges and integrated input protection features. Consider the available switching frequencies to optimize external component size and efficiency. Evaluate the multi-phase capability to determine if higher output currents are needed compared to single-phase alternatives within the same family.

DC DC Switching Controllers Part Context

This part belongs to the PolyPhase series of power management ICs from Analog Devices. It is designed as a synchronous boost controller, distinct from buck or other topologies. The EUHG-2 variant indicates a specific package and pinout configuration within the broader LTC3897 product line.

DC DC Switching Controllers Replacement Considerations

LTC3897IUHG-2#PBF and LTC3897EUHG-2#PBF are related variants within the same family. Verify pinout compatibility and specific electrical parameter differences before substitution.