LT3580EDD#TRPBF

Overview

The LT3580EDD#TRPBF is a monolithic Boost/Inverting DC/DC converter manufactured by Analog Devices Inc. It integrates a 2A power switch, soft-start circuitry, and synchronization capability within a compact DFN-10 package. The device supports input voltages from 2.5V to 32V and delivers adjustable output voltages up to 42V. Operating at a switching frequency range of 200kHz to 2MHz, it offers high efficiency in boost or negative voltage generation configurations. The component functions as a micropower switching regulator with shutdown control, suitable for space-constrained applications requiring robust power management.

Feature Summary

• Integrates a high-current 2A internal power switch for efficient energy transfer
• Supports both step-up (boost) and inverting topologies for flexible voltage regulation
• Includes programmable soft-start functionality to limit inrush current during startup
• Features external clock synchronization to minimize system noise interference

Applications

• Converting standard 5V or 12V supply rails to negative voltages for analog circuits
• Generating higher voltage rails from lower battery sources in portable devices
• Powering LCD bias supplies or sensor interfaces requiring inverted polarity
• Industrial control systems utilizing distributed power architectures

Procurement Notes

Verify the specific suffix #TRPBF confirms tape-and-reel packaging and lead-free compliance before ordering. Confirm that the DFN-10 footprint matches your PCB layout requirements. Ensure the input voltage range aligns with your source supply to prevent overvoltage damage. Check for RoHS directive compliance if required by your manufacturing standards. Validate thermal performance under maximum load conditions for your specific enclosure.

Selection Notes

Choose this component when a single-chip solution is needed for generating negative voltages or boosting low inputs. It is suitable for designs requiring synchronization to avoid audible noise or EMI conflicts. Consider the 2A switch current limit against peak load demands. Evaluate the operating temperature range to ensure reliability in harsh environments. Compare package size constraints against alternative regulators in the same family.

Part Context

This part belongs to the LT3580 series of switching regulators designed for versatile DC/DC conversion tasks. It shares functional similarities with other Linear Technology converters but distinguishes itself through integrated synchronization and high current capacity. The series targets applications needing reliable power conversion without complex external controller setups. It complements broader power management portfolios by offering a compact, high-performance option for boost and inverting needs.

Replacement Considerations

LT3580EMS8E#TRPBF is an electrically equivalent alternative available in an MSOP-8 package. Verify pin compatibility and thermal characteristics when substituting between DFN and MSOP footprints. Ensure the replacement maintains the same switching frequency range and current handling capabilities.