LT3580IMS8E#PBF

Overview

The LT3580IMS8E#PBF is a high-efficiency switching regulator IC manufactured by Analog Devices Inc. It supports Boost, Cuk, and SEPIC topologies with an adjustable output voltage ranging from 5V to 42V. The device integrates a 2A switch and operates within an input voltage range of 2.5V to 32V. It features a programmable switching frequency between 200kHz and 2MHz. The component is housed in an 8-MSOP package with an exposed pad and is rated for operation at temperatures from -40°C to +125°C.

Feature Summary

• Supports multiple DC-DC conversion topologies including boost, Cuk, and SEPIC configurations.
• Integrates a high-current internal switch capable of delivering up to 2A.
• Features programmable switching frequency to optimize external component size and efficiency.

Applications

• Battery-powered systems requiring positive or negative output voltages
• Industrial control circuits needing isolated or non-isolated power rails
• Automotive electronics utilizing wide input voltage ranges

Procurement Notes

Verify the specific suffix and tape/reel configuration against official Analog Devices documentation to ensure compatibility with automated assembly processes. Confirm that the MSOP-8 package dimensions match the target PCB footprint requirements. Check for RoHS compliance status as indicated in the latest datasheet revision. Ensure the operating temperature grade meets the environmental specifications of the final application.

Selection Notes

Select this component when designing circuits that require flexible topology options such as SEPIC or Cuk for varying input-output relationships. Consider the 2A current limit and 32V maximum input rating when sizing external inductors and capacitors. Evaluate the thermal performance of the 8-MSOP package with exposed pad for heat dissipation needs. Compare switching frequency settings against electromagnetic interference constraints.

Part Context

This part belongs to the LT3580 family of monolithic switching regulators designed for high-efficiency power conversion. The IMS8E designation indicates the industrial temperature grade and MSOP-8 package variant. It serves as a versatile solution for applications demanding both positive and negative outputs from a single input source without requiring complex transformer designs.

Replacement Considerations

LT3580EMS8E#TRPBF: Same functional core with different packaging format (Tape & Reel vs Tube). Verify pinout compatibility and thermal characteristics before substitution.

FAQ

What topologies does the LT3580 support?

The LT3580 supports Boost, Cuk, and SEPIC converter topologies, allowing for flexible design configurations.

What is the maximum input voltage for this device?

The maximum input voltage rating for the LT3580 is 32V.