L7812CT

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The L7812CT is a fixed positive linear voltage regulator from the L78xx series, manufactured by STMicroelectronics. It provides a regulated 12 V output with a maximum continuous current capability of 1.5 A. The device accepts an input voltage range typically between 14 V and 35 V. It features internal thermal overload protection and short-circuit current limiting to ensure operational safety under fault conditions. The component is housed in a TO-220 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Provides a stable fixed 12 V DC output for power supply applications
• Includes built-in thermal shutdown protection against overheating
• Features internal current limiting to protect against short circuits

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• General-purpose linear power supplies
• Embedded system biasing
• Industrial control equipment regulation

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific manufacturer marking on the component body to confirm authenticity, as counterfeits exist. Ensure the ordering suffix matches the required package type (TO-220) and temperature rating. Confirm RoHS compliance status if restricted substances are prohibited in the target assembly process.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a simple, low-noise fixed 12 V source is required. It is suitable for applications where efficiency is secondary to circuit simplicity and cost. Verify that the input-to-output voltage differential remains within safe operating limits to manage heat dissipation effectively in the chosen enclosure.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the industry-standard L78xx family of three-terminal positive regulators. These devices are widely used due to their ease of integration and robust performance. The L7812CT specifically denotes the 12 V variant within this lineage, maintaining compatibility with standard design practices established for the series.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Compatible substitutes include LM7812CT and MC7812CT. Verify pinout compatibility and thermal resistance specifications before substitution to ensure equivalent performance in the existing circuit layout.