LT3581IMSE#TRPBF

Overview

The LT3581IMSE#TRPBF is a high-efficiency boost and inverting DC/DC converter manufactured by Analog Devices Inc. It integrates a 3.3A power switch, designed for applications requiring step-up or negative voltage generation from a single input source. The device operates with an input voltage range of 2.7V to 60V and supports switching frequencies up to 1MHz. Key features include integrated fault protection mechanisms such as cycle-by-cycle current limiting and thermal shutdown. It is housed in a thermally enhanced 16-lead MSOP package.

Feature Summary

• Integrates a high-current 3.3A power switch for efficient power conversion
• Supports both boost and inverting topology configurations
• Includes comprehensive fault protection with cycle-by-cycle current limiting
• Features thermal shutdown to safeguard operation under overload conditions

Applications

• Battery-powered systems requiring voltage boosting
• Industrial control circuits needing isolated or negative rails
• Automotive electronics operating on varying supply voltages
• Portable equipment utilizing single-cell battery inputs

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the IMSE variant meets the required industrial temperature range specifications. Ensure compatibility with the intended switching frequency settings via external resistor selection. Validate that the 16-lead MSOP footprint aligns with the target PCB layout constraints.

Selection Notes

Select this component when a robust solution for high-current boost or inverting conversion is required within a compact form factor. Consider the internal 3.3A switch capability against peak load demands. Evaluate the need for integrated fault protection versus external circuitry. Compare input voltage ranges against available power sources to ensure operational stability across the entire duty cycle.

Part Context

This part belongs to the LT3581 family of monolithic switching regulators. It shares architectural similarities with other Linear Technology converters but distinguishes itself through its specific 3.3A switch rating and dual-mode capability. The series targets designs demanding high efficiency and reliability in space-constrained environments without sacrificing output current capacity.

Replacement Considerations

LT3581IMSE#PBF offers the same electrical characteristics in tube packaging instead of tape-and-reel.