KA78L09AZTA

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

The KA78L09AZTA is a fixed positive linear voltage regulator from the KA78LXXA series, manufactured by onsemi. It provides a nominal output voltage of 9V with ±5% tolerance. The device supports a maximum output current of 100mA and operates within an input voltage range of 11.5V to 35V. It features line regulation of 200mV and load regulation of 90mV. The unit is housed in a TO-92-3 through-hole package with a power dissipation rating of 750mW. Operating temperature ranges from 0°C to +125°C.

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.
• Monolithic construction ensures reliable performance without external components.

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

• Power supplies requiring up to 100mA supply current
• On-card regulation for local voltage stabilization
• General purpose electronic circuits needing fixed positive voltage

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

Verify component authenticity and datasheet revision when sourcing this part. Confirm that the specific ordering suffix matches the required packaging type, as variations exist between Ammo Pack, Tape & Reel, and Bulk formats. Ensure the supplier documentation aligns with the manufacturer's specifications for electrical characteristics and mechanical dimensions prior to integration into designs.

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

Select this regulator for applications demanding a stable 9V source with moderate current requirements. Consider the thermal constraints inherent to the TO-92 package, as power dissipation limits are significant at higher input-output differentials. Evaluate the need for external bypass capacitors to ensure stability and optimize transient response during operation.

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

This component belongs to the KA78LXXA family of three-terminal positive regulators. The series offers various fixed output voltages including 5V, 6V, 8V, 10V, 12V, 15V, 18V, and 24V. All variants share similar internal protection mechanisms and physical package options, differing primarily in their regulated output voltage levels and corresponding input voltage requirements.

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

Compatible substitutes include KA78L09AZBU and KA78L09AZTF, which offer identical electrical specifications but differ in packaging format. Other manufacturers producing equivalent L78L09 or MC78L09 devices may serve as functional replacements if pinout and thermal characteristics match.