KA7815E

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

The KA7815E is a three-terminal positive linear voltage regulator from the KA78XXE series, manufactured by onsemi. It provides a fixed output voltage of 15 V with a maximum output current of 1 A. The device operates within an input voltage range of 17.5 V to 30 V and supports junction temperatures from -40°C to +125°C. Electrical characteristics include a line regulation of up to 300 mV, load regulation of up to 300 mV, and ripple rejection of 54 dB typical at 120 Hz. The dropout voltage is specified as 2 V at 1 A output current.

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

• Integrated thermal overload protection prevents damage during excessive heat conditions.
• Internal short-circuit protection limits current flow during output faults.
• Output transistor safe operating area protection ensures stability under varying load conditions.

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

• General-purpose DC power supply regulation
• Local voltage regulation for card distribution systems
• Power supplies requiring fixed positive voltage rails

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

Verify the specific suffix ETU against the official datasheet ordering information to confirm package type and temperature rating. Confirm availability status as legacy components may have discontinuation notices. Ensure compliance with RoHS directives if required for the target application environment.

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

Select this component when a stable 15 V rail is required with up to 1 A load capacity. Ensure the input voltage remains within the 17.5 V to 30 V window to maintain regulation. Verify that the TO-220 package thermal resistance allows for adequate heat dissipation at the expected ambient temperature and load current.

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

This part belongs to the KA78XXE family of three-terminal positive regulators. The series offers multiple fixed output voltages including 5, 6, 8, 9, 10, 12, 15, 18, and 24 V. These devices are designed for applications requiring simple, reliable voltage regulation with built-in safety features such as current limiting and thermal shutdown.

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

KA7815AE

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

What is the minimum input voltage required for the KA7815E?

The minimum input voltage is 17.5 V to ensure proper regulation at the 15 V output.

Does the KA7815E include protection against short circuits?

Yes, the device includes internal short-circuit protection to limit current during fault conditions.