L7812ACP

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

The L7812ACP is a three-terminal positive linear voltage regulator from the L78 series, manufactured by STMicroelectronics. It provides a fixed output voltage of 12 V with a maximum output current capability of 1.5 A. The device accepts an input voltage range up to 35 V and operates within a junction temperature range of -40 °C to +125 °C. It utilizes a TO-220CP surface-mount package. Key electrical characteristics include a typical line regulation of 120 mV and load regulation of 100 mV. The quiescent current is typically 4.4 mA.

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

• Integrated internal current limiting and thermal shutdown protection for robust operation under fault conditions.
• Provides local on-card regulation to eliminate noise and distribution issues associated with single-point regulation systems.
• Capable of delivering over 1 A output current when adequate heat sinking is provided.

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

• Local or on-card voltage regulation in electronic circuits.
• General-purpose power supply units requiring stable 12 V DC output.
• Embedded systems needing reliable positive voltage regulation.

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

Verify the specific suffix 'CP' indicates the TO-220CP surface-mount package variant rather than the standard through-hole TO-220AB. Confirm RoHS compliance status via the manufacturer's official datasheet before procurement. Ensure thermal management design accounts for the power dissipation at the intended load current.

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

Select this component when a fixed 12 V output is required with high current capacity up to 1.5 A. The TO-220CP package is suitable for surface-mount assembly processes. Consider the dropout voltage requirements relative to the minimum input voltage available in the system design.

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

This part belongs to the L78 series of three-terminal positive regulators. The series offers various fixed output voltages and multiple package options including TO-220, TO-220FP, D2PAK, and DPAK. These regulators are designed for wide-ranging applications due to their embedded protection features and ability to provide local regulation.

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

Compatible substitutes include other L7812 variants such as L7812ACDTR or L7812CDTR, provided the package type matches the PCB footprint. Verify that alternative manufacturers offer equivalent pinouts and thermal performance characteristics.