LM217MDT

Overview

The UMW LM217MDT is a monolithic integrated circuit serving as an adjustable three-terminal positive voltage regulator. It is housed in a TO-252 package and designed to supply load currents exceeding 1.5 A. The output voltage is continuously adjustable over a range of 1.2 V to 37 V. Key electrical characteristics include a line regulation of 0.04 %/V and a load regulation of 0.5 %. The device incorporates internal thermal overload protection, short-circuit current limiting, and safe area compensation.

Feature Summary

• Internal thermal overload protection
• Internal short circuit current limiting
• Output transistor safe operating area compensation

Applications

• Positive adjustable voltage regulation
• Local card regulation
• On-line regulation

Procurement Notes

Verify the specific ordering code against the manufacturer's official documentation to ensure correct package identification. Confirm that the TO-252 variant matches the required pinout and thermal specifications for the target application design.

Selection Notes

Select this component when high current capability above 1.5 A is required with adjustable output voltage. Ensure the input-output differential does not exceed 40 V and verify thermal dissipation requirements align with the TO-252 package capabilities under maximum power conditions.

Part Context

This part belongs to the LM217 series of adjustable voltage regulators manufactured by UMW. It shares functional similarities with other industry-standard adjustable regulators but is distinguished by its specific packaging and internal protection features defined by the manufacturer.

Replacement Considerations

Cross-reference with LM317 variants for pin-compatible alternatives. Verify that substitute components meet the same current, voltage, and thermal protection specifications before implementation.