LT1376HVCS#PBF

Overview

The LT1376HVCS#PBF is a monolithic buck switching regulator manufactured by Analog Devices. It operates with an input voltage range of 5 V to 30 V and delivers a continuous output current of 1.5 A. The device integrates a 500 kHz fixed-frequency current-mode controller, reducing external component count. Key electrical specifications include a maximum input voltage of 30 V, adjustable output voltage, and a quiescent current of 20 uA. It functions within a temperature range of 0°C to +125°C and is housed in an 8-lead SOIC package.

Feature Summary

• Integrates a high-efficiency power switch and current-mode controller for compact design
• Supports wide input voltage ranges suitable for various power supply architectures
• Features low quiescent current operation to enhance system efficiency
• Includes thermal shutdown protection for reliable performance under overload conditions

Applications

• Point-of-load regulation for industrial equipment
• Power supplies for embedded systems requiring high current density
• Battery-powered devices needing efficient step-down conversion
• Telecommunications infrastructure power distribution

Procurement Notes

Verify the specific suffix and manufacturer designation during procurement, as Linear Technology products are now managed by Analog Devices. Confirm RoHS compliance status and packaging type (tube) against the latest distributor data sheets. Ensure the part number matches the exact voltage and package requirements for your design. Cross-reference ordering information with official Analog Devices documentation to avoid counterfeit components.

Selection Notes

Select this component when a high-current buck converter is required with a wide input voltage range up to 30 V. The 500 kHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the thermal performance in the SOIC-8 package for your PCB layout. Verify that the adjustable output voltage range meets the load requirements. Evaluate the need for external compensation if operating at extreme duty cycles.

Part Context

This part belongs to the LT1376 family of high-performance switching regulators. The HV variant typically denotes extended voltage handling capabilities. The CS8#PBF suffix indicates an 8-lead SOIC package with lead-free tin plating and Pb-free construction. This series is designed for applications demanding high efficiency and minimal external component count in space-constrained environments.

Replacement Considerations

Direct substitutes may include other parts from the LT1376 family with compatible pinouts and electrical characteristics. Verify equivalent current ratings and input voltage limits before substitution. Consult Analog Devices application notes for cross-referencing similar buck regulators with different switching frequencies or package options.