KA78L08AZBU

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

The KA78L08AZBU is a fixed positive linear voltage regulator from the KA78LXXA series, manufactured by onsemi. It provides a nominal output voltage of 8 V with a maximum output current capability of 100 mA. The device operates within an input voltage range of 10.5 V to 23 V and maintains a junction temperature range of 0 °C to +125 °C. Electrical characteristics include a line regulation of up to 175 mV and load regulation of up to 80 mV under specified conditions. The component utilizes a TO-92 three-terminal package.

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

• Integrated thermal overload protection circuitry prevents damage during overheating events.
• Built-in short circuit current limiting safeguards the device against output faults.
• Monolithic construction ensures stable performance for local on-card regulation applications.

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

• Local on-card voltage regulation
• Logic system power supplies
• Instrumentation circuits

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

Verify the manufacturer origin as the part was originally developed by Fairchild Semiconductor before acquisition by onsemi. Confirm the specific bulk packaging designation associated with the AZBU suffix matches project requirements. Ensure compliance with RoHS directives if applicable to the manufacturing batch. Validate that the TO-92 through-hole package aligns with the intended PCB footprint.

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

Select this component when a fixed 8 V supply is required with currents up to 100 mA. Consider the thermal dissipation limits inherent to the TO-92 package for steady-state operation. Verify that the input voltage remains within the specified minimum and maximum boundaries to ensure proper regulation. Evaluate the need for external bypass capacitors to optimize stability and transient response.

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

This regulator belongs to the KA78LXXA family of three-terminal positive voltage regulators. The series offers various fixed output voltages including 5 V, 6 V, 8 V, 9 V, 10 V, 12 V, 15 V, 18 V, and 24 V. These devices are designed as drop-in replacements for standard LM78Lxx regulators in many applications.

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

Direct substitutes include MC78L08ABPG and MC78L08ACPG from onsemi. Other compatible options within the same family may be identified based on required output voltage and package type.

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

What is the pin configuration for the TO-92 package?

Pin 1 is Output, Pin 2 is Ground (GND), and Pin 3 is Input.

Does the device include protection features?

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