LT1376HVIS8#PBF

Overview

The LT1376HVIS8#PBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It integrates a 1.5A power switch, oscillator, and control logic into an SOIC-8 package. The device operates with an input voltage range of 5V to 30V and supports adjustable output voltages. It features a fixed switching frequency of 500kHz, enabling the use of compact external components. Quiescent current is specified at 20µA, while operating supply current is 2.5mA. The component functions within a temperature range of 0°C to +125°C and includes shutdown capability for power management.

Feature Summary

• Integrates a high-current 1.5A internal power switch for efficient step-down conversion
• Operates at a fixed 500kHz switching frequency to minimize external passive component size
• Supports adjustable output voltage configuration over a wide input range
• Includes integrated shutdown functionality for enhanced system power control

Applications

• Battery-powered portable equipment requiring efficient DC-DC conversion
• Industrial control systems utilizing 24V or 30V bus architectures
• Embedded systems needing regulated low-voltage rails from higher input sources
• Communication infrastructure power distribution networks

Procurement Notes

Verify the specific suffix HVIS8 against the official datasheet to confirm the SOIC-8 package and extended temperature rating. Ensure the #PBF designation matches RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm that the 5V minimum input voltage aligns with your system's power source characteristics before finalizing procurement.

Selection Notes

Select this component when a 1.5A output current is required with a 500kHz switching frequency. It is suitable for designs where input voltages range between 5V and 30V. Consider the SOIC-8 package constraints for thermal performance. Compare quiescent current specifications against other regulators if battery life is critical. Ensure the adjustable output feature meets the specific voltage requirements of the target application circuit.

Part Context

This part belongs to the LT1376 series of monolithic buck regulators. It shares core topology and switching characteristics with variants like the LT1376IS8#PBF, which differs primarily in package type and operating temperature range. The series is designed for applications requiring high efficiency and small footprint. It serves as a solution for converting higher input voltages to lower regulated outputs in space-constrained environments.

Replacement Considerations

LT1376IS8#PBF is a parameter-equivalent alternative offering similar electrical performance in an SOIC-16 package.