LT1374HVCS8#PBF

Overview

The LT1374HVCS8#PBF is a monolithic Buck/SEPIC switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 5V to 32V and provides an adjustable output voltage between 2.42V and 27.52V. The device supports a switch current of 4.5A and features a fixed switching frequency of 500kHz. Packaged in an 8-SOIC (3.90mm wide) surface-mount housing, it functions as a positive, single-output regulator. The component is rated for a junction temperature range of 0°C to 125°C and includes shutdown functionality.

Feature Summary

• Integrates high-current internal power switch capable of delivering up to 4.5A
• Supports both Buck and SEPIC topologies for flexible input-output configurations
• Features low quiescent current operation for improved efficiency at light loads
• Includes integrated soft-start to limit inrush current during startup

Applications

• Industrial distributed power systems requiring high current density
• Battery-powered equipment needing efficient step-down conversion
• General-purpose DC-DC conversion in compact embedded designs

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with required input voltage ranges and thermal management strategies for the 8-SOIC package. Cross-reference datasheet revisions for any updates to electrical characteristics or pinout definitions before finalizing procurement specifications.

Selection Notes

Select this component when applications require a high-current buck regulator with extended input voltage capabilities up to 32V. Consider the 500kHz switching frequency for balancing component size and efficiency. Evaluate thermal performance requirements given the 4.5A switch capability within the SOIC-8 footprint. Verify that the adjustable output range meets the specific load voltage needs of the target circuit design.

Part Context

This part belongs to the LT1374 family of high-performance switching regulators designed for demanding power management applications. The HV variant specifically extends the maximum input voltage rating compared to standard versions. It serves as a robust solution for converting higher voltage rails down to lower logic or analog supply voltages in space-constrained environments.

Replacement Considerations

LT1374HVIS8#PBF is documented as a parameter equivalent substitute.