L7812ACD2T-TR

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

The L7812ACD2T-TR is a standard positive linear voltage regulator from the STMicroelectronics L78 series. It provides a fixed 12V output with a maximum continuous current of 1.5A. The device operates within an input voltage range of 14.8V to 25V, with a maximum absolute rating of 35V. It features a nominal dropout voltage of 1.2V and is housed in a D2PAK (TO-263) surface-mount package with three pins. Internal protections include current limiting, thermal shutdown, and safe operating area protection.

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

• Fixed 12V output voltage regulation
• Integrated overload and thermal protection mechanisms
• Surface-mount D2PAK packaging for board integration

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

• Local on-card voltage regulation
• General-purpose power supply circuits
• Embedded system power distribution

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

Verify the specific suffix 'AB' or 'AC' against the required datasheet revision, as these denote different accuracy grades. Confirm the D2PAK package variant matches the footprint requirements. Ensure the tape-and-reel quantity aligns with production needs. Cross-reference the manufacturer part number with official STMicroelectronics documentation to confirm authenticity and current status.

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

Select this component when a robust, fixed 12V source is needed for moderate current loads up to 1.5A. The D2PAK package offers improved thermal dissipation compared to smaller SMD packages. Consider the minimum input voltage requirement of approximately 14V to ensure proper regulation under all load conditions. Evaluate thermal management strategies based on the expected power dissipation in the application environment.

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

This part belongs to the widely used L78xx family of three-terminal linear regulators. The L78 series is known for its simplicity and reliability in basic power management tasks. The 'CD2T' designation indicates the D2PAK surface-mount package and tape-and-reel shipping format. It serves as a direct replacement for through-hole TO-220 versions in space-constrained designs.

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

L7812CD2T-TR: Equivalent performance with potentially different manufacturing lot specifications. L7812ABD2T-TR: Similar function but may differ in line/load regulation tolerances.