LT1372HVIS8#TRPBF

Overview

The LT1372HVIS8#TRPBF is a monolithic high-frequency switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 2.7 V to 30 V and provides an adjustable output voltage up to 42 V (switch). The device features a 1.5 A switch current capability and supports multiple topologies including boost, buck, inverting, flyback, forward, and Cuk configurations. It functions at a switching frequency of 500 kHz with a typical quiescent current of 4 mA. The component is housed in an 8-lead SOIC package and is rated for operation between -40°C and +125°C.

Feature Summary

• Supports all standard switching topologies including boost, buck, inverting, flyback, forward, and Cuk configurations on a single chip.
• Integrates a high-efficiency 1.5 A power switch with internal oscillator and control circuitry.
• Operates over a wide input voltage range from 2.7 V to 30 V with adjustable output capabilities.

Applications

• Battery-powered systems requiring efficient step-up or step-down conversion
• Industrial control circuits utilizing flyback or forward converter topologies
• Negative voltage generation for analog signal processing
• Cuk converter applications for low ripple current requirements

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm the HV variant specifications against the official Analog Devices datasheet to ensure compatibility with high-voltage input requirements. Check RoHS compliance status as documented in the manufacturer's release notes. Ensure the 8-SOIC footprint matches the design layout before finalizing procurement.

Selection Notes

Select this component for designs requiring a versatile single-chip solution for multiple converter topologies. The 500 kHz switching frequency allows for smaller external passive components compared to lower-frequency regulators. Consider the 1.5 A switch current limit when sizing inductors and ensuring thermal management within the SOIC-8 package constraints for the intended load conditions.

Part Context

This part belongs to the LT1372/LT1377 family of high-frequency switching regulators. These devices are designed to replace traditional linear regulators in applications where efficiency and heat dissipation are critical concerns. The family integrates the power switch and control logic to minimize external component count while maintaining high performance across various industrial and commercial temperature ranges.

Replacement Considerations

LT1372IS8#PBF is a pin-compatible alternative in tube packaging. LT1377 variants offer similar functionality with potential differences in maximum voltage ratings or switching frequencies; consult the datasheet for exact electrical parameter comparisons before substitution.