MC7812ACD2T

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

The MC7812ACD2T is a monolithic integrated circuit fixed-voltage linear regulator from the MC7800 series by onsemi. It provides a nominal 12 V output with a maximum continuous current of 1.0 A. The device operates within an input voltage range of 14.5 V to 35 V and supports junction temperatures up to +125°C. It utilizes a D2PAK-3 surface-mount package (CASE 936) for efficient thermal dissipation.

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

• Internal thermal overload protection shuts down the circuit during excessive power conditions.
• Internal short-circuit current limiting protects against output faults.
• Output transistor safe-area compensation reduces short-circuit current as voltage across the pass transistor increases.

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

• Local on-card regulation
• Positive voltage regulation in electronic circuits

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

Verify the specific suffix 'T' against official documentation, as datasheets primarily list 'TG' or 'TR4G' variants. Confirm RoHS compliance status and ensure the D2PAK-3 footprint matches the design requirements. Check for automotive qualification if NCV prefix is required.

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

Select this component for applications requiring a stable 12 V supply with up to 1 A load capacity. Ensure adequate heatsinking is provided to manage power dissipation. Verify that the input voltage remains sufficiently above the dropout voltage under all operating conditions.

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

This part belongs to the MC7800 series of positive voltage regulators, which includes variants like MC7812ACD2TG and MC7812ACD2TR4G. The series is designed for general-purpose fixed-voltage regulation with built-in safety features such as thermal shutdown and current limiting.

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

MC7812ACD2TG

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

What is the function of the internal short-circuit protection?

It limits the maximum current the circuit will pass, protecting the device from damage during output short-circuit conditions.

Is external componentry required for basic operation?

No external components are required for basic fixed-voltage regulation, though input bypass capacitors are recommended for stability with long wire lengths.