LT3580IMS8E#TRPBF

Overview

The LT3580IMS8E#TRPBF is a monolithic switching regulator IC from Analog Devices, housed in an 8-lead MSOP package with an exposed pad. It integrates a high-voltage switch capable of delivering up to 2A of output current. The device supports multiple topologies including boost, inverting, Cuk, and SEPIC configurations. It operates with an input voltage range of 2.5V to 32V and can generate adjustable output voltages up to 42V. The internal oscillator allows for switching frequencies between 200kHz and 2MHz. It features a low quiescent current of 1mA and includes soft-start functionality to limit inrush current.

Feature Summary

• Integrates a high-voltage power switch supporting boost, inverting, Cuk, and SEPIC converter topologies within a single compact package.
• Provides programmable switching frequency ranging from 200kHz to 2MHz to optimize external component size and efficiency.
• Includes integrated soft-start circuitry to control inrush current during startup sequences.
• Features a shutdown pin that reduces supply current to a minimal level for power management applications.

Applications

• Battery-powered systems requiring positive or negative voltage regulation
• Industrial control circuits needing isolated or non-isolated DC/DC conversion
• Automotive electronics operating within wide input voltage ranges
• Portable equipment utilizing boost or inverting converter architectures

Procurement Notes

Verify the specific suffix E#TRPBF confirms tape-and-reel packaging and industrial temperature grade. Confirm RoHS compliance status through official manufacturer documentation. Ensure the MSOP-8EP package footprint matches the design layout. Cross-reference the datasheet revision date to validate parameter accuracy against current production standards.

Selection Notes

Select this component when a single-chip solution for boost, inverting, Cuk, or SEPIC topologies is required. It is suitable for designs needing a 2A switch current capability with an input voltage up to 32V. Consider the thermal performance of the exposed pad for heat dissipation. Evaluate the required switching frequency against available inductor and capacitor sizes.

Part Context

This part belongs to the LT3580 family of high-voltage switching regulators. It shares functional similarities with other members like the LT3580EMS8E#TRPBF but differs in temperature rating and packaging format. The IMS8E designation indicates an industrial temperature range variant. It serves as a versatile power management solution for various DC/DC conversion needs.

Replacement Considerations

LT3580EMS8E#TRPBF is a parameter-equivalent alternative with commercial temperature grading. LT3580HMS8E#TRPBF offers extended temperature range capabilities. Verify pin compatibility and thermal characteristics before substitution. Check for any differences in switching frequency tolerances or soft-start timing between variants.