L7815

Overview

The L7815 is a fixed linear voltage regulator manufactured by Lumimax Optoelectronic Technology. It provides a nominal output voltage of 15 V with a maximum output current capability of 1 A. The device operates within an input voltage range of 17.5 V to 30 V, requiring a minimum dropout voltage of approximately 2 V. Key electrical specifications include a maximum line regulation of 0.3% and a maximum load regulation of 0.3%. The component features internal protection mechanisms against overcurrent conditions and thermal overload.

Feature Summary

• Integrated overcurrent protection circuitry
• Built-in thermal shutdown functionality

Applications

• General-purpose positive power supply regulation
• Local on-card regulation for distribution networks
• Pre-regulator stages for switching regulators

Procurement Notes

Verify the manufacturer designation as Lumimax Optoelectronic Technology against standard industry datasheets, as this part number typically corresponds to other manufacturers. Confirm package type compatibility and pinout alignment before integration. Ensure input voltage constraints are strictly observed to prevent device damage.

Selection Notes

Select this component when a stable 15 V DC source is required from a higher voltage rail up to 30 V. Consider the thermal dissipation requirements associated with the 1 A output current capability. Verify that the application does not require adjustable output voltages or negative polarity regulation.

Part Context

This component belongs to the family of three-terminal positive linear voltage regulators. These devices are widely used in electronic circuits to provide regulated power supplies. The specific model offers a fixed 15 V output, distinguishing it from adjustable variants or other fixed voltage options within the same regulatory series.

Replacement Considerations

Standard equivalents include LM7815, MC7815, and UA7815. Verify pinout compatibility and thermal performance characteristics when substituting.