KA79M12TU

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

The KA79M12TU is a monolithic integrated circuit belonging to the KA79MXX series of three-terminal medium current negative voltage regulators. Manufactured by onsemi, this device provides a fixed output voltage of -12 V with a maximum output current capability exceeding 0.5 A. It utilizes a TO-220 package for through-hole mounting and operates within an ambient temperature range of 0 °C to +125 °C. The component incorporates internal thermal overload protection and short circuit current limiting to ensure operational safety under fault conditions.

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

• Integrated thermal overload shutdown and internal short circuit current limiting mechanisms
• Output transistor safe area compensation for enhanced reliability
• Fixed negative voltage regulation without requiring external components

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

• Power supply systems requiring stable negative voltage rails
• Electronic circuits utilizing dual polarity power distribution
• General purpose linear voltage regulation in industrial equipment

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

Verify the specific manufacturer origin as the part was originally produced by Fairchild Semiconductor before acquisition by onsemi. Confirm that the TO-220 package variant matches the required mechanical footprint for the target PCB design. Ensure compliance with applicable environmental directives relevant to the deployment region.

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

Select this regulator when a fixed negative voltage rail is necessary for system operation. The TO-220 package facilitates efficient heat dissipation compared to smaller surface mount alternatives. Verify that the input voltage remains within the specified absolute maximum ratings to prevent device damage during transient events or continuous operation.

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

This component belongs to the KA79MXX family of negative voltage regulators, which includes variants offering outputs from -5 V to -24 V. The series shares identical pin configurations and protective features across different voltage options. The 'TU' suffix specifically denotes the TO-220 through-hole package configuration used for higher thermal performance applications.

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

LM79M12 serves as a direct functional equivalent within the same regulatory family.