L7812ACV-DG

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

The L7812ACV-DG is a positive linear voltage regulator from the STMicroelectronics L78 series, designed for local card-level regulation. It provides a fixed 12 V output with a maximum continuous current of 1.5 A. The device operates within an input voltage range up to 35 V and supports junction temperatures from -40 °C to +125 °C. Key electrical parameters include a typical quiescent current of 6 mA and a maximum dropout voltage of 2 V at 1 A load. It features internal thermal overload protection and short-circuit current limiting.

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

• Fixed 12 V output voltage for stable power supply applications
• Integrated thermal shutdown and current limit protection circuits
• Robust TO-220-3 through-hole package for efficient heat dissipation

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

• General-purpose power supply regulation
• Local on-card voltage stabilization
• Embedded system power management

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

Verify the specific suffix 'DG' against the manufacturer's official datasheet to confirm packaging details and RoHS compliance status. Ensure the ordering part number matches the required tolerance and thermal characteristics. Cross-reference the Mouser or DigiKey catalog numbers to validate availability and exact component specifications before finalizing procurement orders.

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

Select this component when a reliable, fixed 12 V source is needed for moderate current loads up to 1.5 A. The TO-220-3 package facilitates easy mounting on heatsinks for thermal management. Consider the 2 V dropout voltage requirement to ensure sufficient input-output differential during operation under full load conditions.

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

This regulator belongs to the widely adopted L78xx family of three-terminal positive linear regulators. These devices are standard solutions for eliminating single-point regulation issues in electronic designs. The L78 series offers a range of fixed output voltages, providing a cost-effective and robust method for local voltage control in various industrial and consumer electronics.

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

The UA7812CKCS from Texas Instruments is documented as a direct substitute. Verify pinout compatibility and thermal performance equivalence before implementing any alternative components in existing circuit designs.