KA78L12AZTA

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

The KA78L12AZTA is a fixed voltage monolithic integrated circuit positive linear regulator from the KA78LXXA series, manufactured by onsemi. It provides a nominal output voltage of 12 V with a maximum output current capability of 100 mA. The device is housed in a TO-92-3 through-hole package and operates within an ambient temperature range of 0°C to +125°C. Electrical specifications include a line regulation of 250 mV and a load regulation of 100 mV under standard test conditions. The component features internal thermal overload protection and short circuit current limiting for robust operation.

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

• Integrated thermal overload protection prevents damage during overheating events
• Built-in short circuit current limiting safeguards against output faults
• Monolithic construction ensures reliable fixed voltage regulation

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

• Power supply sections requiring up to 100mA current
• Local biasing circuits for operational amplifiers
• General purpose DC-to-DC regulation applications

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

Verify the manufacturer origin as Fairchild Semiconductor or onsemi due to corporate acquisition history. Confirm the specific suffix AZTA corresponds to the TO-92 package and Ammo Pack configuration. Ensure compliance with RoHS directives if required by the target application environment. Cross-reference datasheet revision numbers to validate electrical characteristics against current production standards.

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

Select this component when a stable 12 V rail is needed for low-current loads up to 100 mA. The TO-92 package is suitable for through-hole mounting where space constraints are minimal. Consider the dropout voltage requirements relative to the input source. Evaluate thermal dissipation capabilities based on the expected power loss and ambient operating temperatures to ensure safe junction temperatures.

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

This part belongs to the KA78LXXA family of three-terminal positive voltage regulators. The series offers various fixed output voltages including 5V, 6V, 8V, 9V, 10V, 12V, 15V, 18V, and 24V. These regulators are designed for applications requiring moderate current levels and feature internal protections to enhance system reliability without external components.

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

Equivalent parts include LM78L12ACZ and MC78L12ACPG.