L7815CP

Overview

The L7815CP is a positive fixed linear voltage regulator from the STMicroelectronics L78xx series, housed in a TO-220FP package. It provides a fixed output voltage of 15V with a maximum output current of 1.5A. The device supports a maximum input voltage of 35V and features a typical dropout voltage of 2V at 1A. Internal protections include thermal shutdown and short-circuit current limiting. The component operates within a temperature range of 0°C to 125°C.

Feature Summary

• Integrated internal current limiting and thermal shutdown protection mechanisms ensure robust operation under fault conditions.
• Provides local on-card regulation capabilities, eliminating distribution problems associated with single-point regulation systems.
• Capable of delivering over 1A output current when adequate heat sinking is provided.

Applications

• Local on-card voltage regulation for electronic circuits
• General-purpose positive power supply applications
• Equipment requiring stable 15V DC output

Procurement Notes

Verify the specific suffix 'CP' against the manufacturer's official datasheet to confirm the exact package type (TO-220FP) and pinout configuration. Ensure that the procurement documentation explicitly lists the part as an active component. Cross-reference the ordering information with the original manufacturer's catalog to avoid substitutions with variants that may have different thermal or electrical characteristics.

Selection Notes

Select this component for designs requiring a fixed 15V output with up to 1.5A capacity. Verify that the input voltage remains within the 35V maximum limit and that sufficient thermal management is available to handle power dissipation. Consider the TO-220FP package constraints for PCB layout and mounting requirements compared to surface-mount alternatives.

Part Context

This part belongs to the L78xx family of three-terminal positive regulators. The series is designed for various fixed output voltages and packages, including TO-220, D2PAK, and DPAK. These regulators are characterized by their simplicity and reliability, offering embedded safety features without external components for basic regulation tasks.

Replacement Considerations

Compatible substitutes include other L7815 variants such as L7815ABV, provided the package and thermal specifications match the design requirements. Verify that any replacement maintains the same output voltage, current capability, and protection features.