KA78R12CTU

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

The KA78R12CTU is a fixed-output low-dropout (LDO) voltage regulator manufactured by onsemi. It provides a stable 12 V output with a maximum continuous current of 1 A. The device operates within an input voltage range of 4 V to 35 V and features a maximum dropout voltage of 500 mV. Electrical specifications include a line regulation of 2.5% and load regulation of 2%. Thermal performance allows for power dissipation up to 15 W. The component supports through-hole mounting in a TO-220-4 package and functions reliably across an operating temperature range from -20 °C to +80 °C.

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

• Provides a fixed positive 12 V regulated output suitable for standard logic and analog circuits.
• Capable of delivering up to 1 A of continuous output current with low quiescent current consumption.
• Designed for through-hole integration using the robust TO-220-4 package for efficient thermal management.

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

• General-purpose linear power supply regulation
• Biasing circuits for analog signal processing
• Power conditioning for embedded control systems

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

Verify component authenticity and datasheet alignment before procurement, as this part number is listed as obsolete or discontinued by the manufacturer. Confirm that alternative sources provide original packaging and valid traceability documentation. Ensure that any substitute components meet the required electrical specifications and physical footprint constraints for the intended application design.

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

Select this component when a fixed 12 V output at 1 A is required with minimal external circuitry. The TO-220-4 package facilitates direct heatsinking for high-power dissipation scenarios. Consider the specific input voltage requirements relative to the dropout characteristics to ensure stable regulation under varying load conditions and ambient temperatures.

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

This device belongs to the KA78R series of low-dropout regulators produced by onsemi. The series offers various fixed output voltages tailored for different power management needs. These regulators are designed to replace traditional linear regulators while offering improved efficiency and thermal performance in compact through-hole configurations.

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

Public confirmed substitute part numbers are not available in the provided source material due to the component's obsolete status. Verify compatibility with equivalent LDO regulators if redesigning the circuit board layout.