L7815CT

Overview

The L7815CT is a three-terminal positive linear voltage regulator manufactured by STMicroelectronics, delivering a fixed 15V output with a maximum current capacity of 1.5A. It operates within an input voltage range of 7V to 35V and supports through-hole mounting in a TO-3 package. The device functions reliably across a temperature range of 0°C to +125°C, featuring internal protections against overcurrent and thermal overload.

Feature Summary

• Provides stable fixed 15V DC output for power supply applications
• Integrates internal thermal shutdown and short-circuit protection circuits
• Supports high output current up to 1.5A with appropriate heat sinking

Applications

• General-purpose laboratory power supplies
• Industrial equipment requiring regulated positive voltage rails
• Embedded systems utilizing standard linear regulation topologies

Procurement Notes

Verify component authenticity due to the part's discontinued status. Confirm that the TO-3 package matches your board layout requirements. Ensure adequate thermal management solutions are implemented, as the device dissipates significant heat at higher load currents. Check for available replacement alternatives if long-term supply stability is required.

Selection Notes

Select this component when a robust, high-current positive linear regulator is needed for non-miniaturized designs. The TO-3 package offers superior thermal performance compared to smaller surface-mount options. Consider the specific input-to-output voltage differential to manage power dissipation effectively within the operating temperature limits.

Part Context

This component belongs to the L78xx series of three-terminal positive regulators from STMicroelectronics. It is designed for straightforward application with minimal external components. The series is widely recognized for its reliability in providing fixed voltage outputs for various electronic circuits requiring stable power delivery.

Replacement Considerations

L7815CV is documented as a similar alternative.