LT3511IMS#TRPBF

Overview

The LT3511IMS#TRPBF is a monolithic high voltage isolated flyback converter manufactured by Analog Devices Inc. It integrates a 150V, 260mA switch and operates from a 100V input supply. The device features micropower operation with low quiescent current to minimize standby power consumption. It eliminates the need for external startup resistors through an integrated start-up circuit. The component supports isolated output regulation without requiring opto-couplers or transformer feedback windings in certain configurations, simplifying the design of compact power supplies.

Feature Summary

• Integrates a high-voltage 150V switch rated for 260mA continuous current
• Eliminates the requirement for external startup resistors via internal start-up circuitry
• Enables isolated flyback conversion with micropower standby characteristics
• Supports simplified transformer designs by reducing dependency on auxiliary feedback windings

Applications

• Isolated DC-DC converters for industrial control systems
• Power supplies for instrumentation and measurement equipment
• Auxiliary power generation in high-voltage embedded applications
• Battery chargers requiring galvanic isolation

Procurement Notes

Verify the specific suffix and package marking against the official Analog Devices datasheet to confirm pinout and thermal performance. Ensure the ordering part number matches the exact tape-and-reel specification required for automated assembly. Cross-reference the manufacturer's latest revision history to validate compliance with current environmental standards and material declarations before final procurement.

Selection Notes

Select this component when designing isolated flyback converters that require high input voltage tolerance up to 100V. It is suitable for applications demanding minimal quiescent current during standby modes. Consider the integrated switch rating and thermal dissipation capabilities relative to the expected load conditions. Evaluate the simplicity of the external component count compared to discrete controller solutions.

Part Context

This part belongs to the LT3511 family of high-voltage isolated flyback converters. It is designed to replace traditional discrete solutions that require separate controllers, high-voltage switches, and complex startup networks. The integration allows for smaller footprint designs while maintaining robust performance in noisy industrial environments.

Replacement Considerations

LT3511EFE#PBF