KA78L05AZTF

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

The KA78L05AZTF is a fixed voltage monolithic integrated circuit linear regulator from the KA78LXXA series, manufactured by onsemi. It provides a nominal output voltage of 5V with a ±5% tolerance and supports a maximum output current of 100mA. The device operates within an input voltage range up to 30V for the 5V variant and features thermal overload protection and short circuit current limiting. It is housed in a SOT-89 surface-mount package and is designed for applications requiring supply currents up to 100mA.

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

• Integrated thermal overload protection prevents damage during overheating conditions.
• Short circuit current limiting safeguards the device against output faults.
• Fixed 5V output voltage with standard manufacturing tolerances.

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

• Power supplies requiring regulated 5V DC output
• Battery-powered equipment needing stable voltage regulation
• General-purpose positive voltage regulation circuits

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

Verify the specific ordering suffix 'ZTF' corresponds to tape and reel packaging as documented in the official Fairchild/Onsemi ordering information table. Confirm that the component meets RoHS compliance requirements if applicable to your assembly process. Ensure the supplier provides traceability documentation consistent with the manufacturer's specifications for this part number.

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

Select this component when a fixed 5V output with 100mA capability is required in a compact SOT-89 surface-mount footprint. Consider the internal thermal shutdown and current limit features for robust operation. Verify that the input voltage remains within the specified absolute maximum ratings to ensure reliable performance under all operating conditions.

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

This regulator belongs to the KA78LXXA family of 3-terminal positive voltage regulators. The family includes variants with different output voltages (6V, 8V, 9V, etc.) and packages such as TO-92 and 8-SOP. The KA78L05AZTF specifically denotes the 5V version in SOT-89 tape and reel packaging, maintaining the core electrical characteristics of the broader series.

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

Compatible substitutes include KA78L05AMTM and KA78L05ADTF from the same manufacturer family, which share identical electrical specifications but differ in packaging type or reel configuration.

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

What is the maximum power dissipation rating for the KA78L05AZTF?

The maximum steady-state power dissipation is limited to 0.75W, dependent on heat sinking and lead length.

Does the KA78L05AZTF include protection features?

Yes, it includes thermal overload protection and short circuit current limiting to enhance reliability.