L7808CP

Overview

The L7808CP is a three-terminal positive linear voltage regulator from the STMicroelectronics L78xx series. It provides a fixed output voltage of 8 V with a maximum output current capability of 1.5 A. The device supports an input voltage range up to 35 V and operates within a temperature range of 0 °C to 125 °C. Key electrical parameters include a typical static current of 8 mA, a dropout voltage of approximately 2 V at 1 A load, and internal protections against thermal overload and short circuits.

Feature Summary

• Fixed 8 V output voltage regulation
• Integrated thermal overload protection
• Short circuit current limiting
• Safe area protection for output transitions

Applications

• Local on-card voltage regulation
• General-purpose power supplies
• Battery chargers

Procurement Notes

Verify the specific suffix 'CP' against official STMicroelectronics documentation to confirm package type and tolerance specifications. Ensure compatibility with required thermal management solutions given the TO-220 package constraints. Confirm RoHS compliance status for the specific manufacturing batch before procurement.

Selection Notes

Select this component when a stable 8 V supply is required for loads up to 1.5 A. Consider the thermal dissipation requirements based on the input-output voltage differential and ambient temperature. Verify that the application does not require adjustable voltage or lower dropout characteristics than provided by this standard linear regulator.

Part Context

This part belongs to the L78xx family of three-terminal positive regulators. The series is designed for local regulation applications, eliminating distribution problems associated with single-point regulation. The L78xx devices are known for their robustness and simplicity in fixed-voltage applications.

Replacement Considerations

L7808CV: Pin-compatible alternative with similar electrical characteristics. L7808CD2T-TR: Surface-mount D²PAK variant offering equivalent functionality.