KA7805AE

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

The KA7805AE is a three-terminal positive linear voltage regulator from the KA78XXAE series, manufactured by onsemi. It provides a fixed output voltage of 5 V with a tolerance of ±2% at 25°C and supports an output current up to 1 A. The device operates within a temperature range of 0°C to +125°C and is housed in a TO-220 package. Key electrical characteristics include a typical dropout voltage of 2 V at 1 A, a quiescent current of 6 mA, and ripple rejection of 68 dB at 120 Hz.

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

• Integrated thermal overload protection prevents damage during overheating conditions.
• Built-in short-circuit protection limits current flow to safeguard the component.
• Output transistor safe operating area protection ensures stability under varying load conditions.

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

• DC parameter regulation
• Split power supply systems
• Ripple rejection circuits

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

Verify the specific ordering suffix (e.g., TU) against the manufacturer's official documentation to confirm the exact package type and parking method. Ensure that the required output voltage tolerance matches the ±2% specification for the AE variant. Confirm compliance with REACH status and environmental classifications prior to procurement.

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

Select this component when a fixed 5 V output with high precision is required. The KA7805AE is suitable for applications needing robust internal protection features such as thermal shutdown and current limiting. Consider the TO-220 package for through-hole mounting and adequate heat dissipation capabilities for currents up to 1 A.

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

This part belongs to the KA78XXE/KA78XXAE series of three-terminal positive regulators. These devices are designed for a wide range of applications requiring fixed output voltages. The series includes multiple voltage options and packages, offering flexibility for various power management needs while maintaining consistent protection features across the family.

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

Check for updated part numbers due to Fairchild Semiconductor integration into ON Semiconductor, where underscores may be replaced by dashes. Verify compatibility with KA7805E if wider temperature ranges or different tolerances are acceptable.

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

What is the maximum input voltage for the KA7805AE?

The absolute maximum input voltage is 35 V for output voltages between 5 V and 18 V.

Does the KA7805AE include protection against short circuits?

Yes, the device employs internal short-circuit protection to limit current and prevent damage.