LTC3897IFE

DC DC Switching Controllers Overview

The LTC3897IFE is a synchronous boost DC/DC controller featuring an integrated surge stopper and ideal diode controller. It supports input voltages from 4.5 V to 75 V with output capabilities up to 60 V. The device operates at switching frequencies between 105 kHz and 760 kHz, drawing a typical quiescent current of 55 uA. Designed for high-efficiency power conversion, it offers precise load regulation of 0.01% and functions reliably within a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Integrates a surge stopper for robust input protection against transient voltage spikes.
• Includes an ideal diode controller to prevent reverse current flow and enhance efficiency.
• Supports multi-phase operation to distribute thermal load and increase output current capacity.

DC DC Switching Controllers Applications

• High-efficiency two-phase 24V boost converter designs
• Two-phase 48V boost converters with overcurrent protection
• 12V systems requiring overvoltage and reverse current protection
• Industrial power supply modules

DC DC Switching Controllers Procurement Notes

Verify the specific package variant, as the IFE suffix denotes a QFN-38 package. Confirm that the selected component matches the required electrical specifications for your target application, particularly regarding input voltage ranges and phase configuration. Ensure compatibility with external MOSFETs and passive components for optimal performance.

DC DC Switching Controllers Selection Notes

Select this controller when input sources require surge protection and reverse current blocking are critical. It is suitable for applications demanding high efficiency across varying loads. Consider the operating frequency range and thermal requirements when designing the power stage. Verify that the external components support the desired output voltage and current levels.

DC DC Switching Controllers Part Context

The LTC3897 belongs to Analog Devices' PolyPhase series of synchronous boost controllers. This family emphasizes high efficiency and compact design through multi-phase interleaving. The device integrates advanced protection features typically found in industrial and automotive power management systems, ensuring reliable operation under harsh conditions.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for cross-reference information or compatible alternatives within the same product family.