LT3511EMS#TRPBF

Overview

The LT3511EMS#TRPBF is a monolithic high voltage isolated flyback converter manufactured by Analog Devices Inc. It integrates a 150V, 260mA power switch and operates from a 100V input supply without requiring an external start-up resistor. The device features micropower operation with low quiescent current, making it suitable for battery-powered applications. It includes internal soft-start to limit inrush current and provides cycle-by-cycle current limiting for robust protection against short circuits and overloads.

Feature Summary

• Integrates a 150V power switch eliminating the need for external high-voltage components
• Operates without an external start-up resistor for simplified circuit design
• Features micropower architecture for extended battery life in portable devices

Applications

• Battery-powered industrial instrumentation
• Isolated power supplies for sensor networks
• High voltage bias generation for medical devices

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm that the EMS package designation matches the required surface mount footprint for your PCB layout. Ensure the component meets RoHS compliance requirements for your manufacturing process. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm availability and lead times prior to procurement.

Selection Notes

Select this component when a compact, high-voltage isolated solution is required without complex external startup circuitry. Consider the 260mA output capability relative to the transformer turns ratio and load requirements. Evaluate the thermal performance of the MSOP-10 package under maximum load conditions. Compare against other flyback controllers if higher output currents or different isolation voltages are needed.

Part Context

The LT3511 belongs to Analog Devices' family of isolated switching regulators designed for high-voltage, low-power applications. It simplifies the design of isolated power stages by integrating the primary-side switch and control logic. This series targets applications where space constraints and low standby power consumption are critical design parameters.

Replacement Considerations

LT3511IMS#TRPBF: Identical electrical specifications with a different MSOP-10 package variant.