LT3999EMSE#TRPBF

Overview

The LT3999EMSE#TRPBF is a monolithic, high-voltage, high-frequency DC/DC transformer driver manufactured by Analog Devices Inc. It provides isolated power in a small solution footprint and includes two 1A current-limited power switches that perform out-of-phase switching operations. The device operates as a push-pull switching regulator IC with positive isolation capability and adjustable output. It supports a wide input voltage range from 4V to 60V and functions within an operating temperature range of -40°C to +125°C. The component utilizes a 10-MSOP package with an exposed pad for thermal management.

Feature Summary

• Integrates two 1A current-limited power switches for high-current isolated power delivery
• Enables compact isolated power solutions through high-frequency operation
• Supports push-pull topology with duty cycle control capabilities

Applications

• Isolated power supply designs requiring small footprint
• High-voltage DC/DC conversion applications
• Industrial systems needing galvanic isolation

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when sourcing. Confirm the MSOP-10 package variant matches your PCB layout requirements. Ensure the 4V to 60V input range aligns with your system's power rails. Check for RoHS compliance documentation if required by your manufacturing standards. Validate availability status as distribution channels may vary.

Selection Notes

Select this component when designing isolated power converters requiring integrated high-side and low-side drivers. The 1A switch current rating suits moderate power isolation needs. Consider the 10-MSOP package constraints for thermal dissipation in dense layouts. Verify compatibility with external transformer specifications for the desired isolation voltage. Evaluate the need for duty cycle control features in your regulation loop.

Part Context

This part belongs to the LT3999 series of high-voltage DC/DC transformer drivers from Analog Devices. It is designed to simplify isolated power supply design by integrating power switches and control logic. The series targets applications where board space is limited but high voltage isolation is necessary. It complements other PMIC offerings by providing a specialized solution for flyback or push-pull topologies.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.