KA350

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

The KA350 is a 3-terminal positive adjustable voltage regulator manufactured by onsemi, formerly Fairchild Semiconductor. It provides an output current exceeding 3.0 A with an adjustable voltage range from 1.2 V to 33 V. The device features internal thermal overload protection and short circuit current limiting. Electrical characteristics include a typical line regulation of 0.015 %/V and load regulation of 0.1 %. It operates within a temperature range of 0 °C to +125 °C and utilizes a TO-220 package.

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

• Adjustable output voltage between 1.2 V and 33 V
• Guaranteed 3 A continuous output current capability
• Internal thermal overload protection and short circuit current limit
• Output transistor safe area compensation

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

• General purpose power supply designs
• Local regulation for card distribution systems
• Programmable output power supplies

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

Verify the manufacturer origin as the component was originally produced by Fairchild Semiconductor before its acquisition by onsemi. Confirm the package type is TO-220 and the operating temperature range covers 0 °C to +125 °C. Ensure the part number matches the specific ordering information provided in official documentation to avoid confusion with similar regulatory devices.

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

Select this regulator when a stable, high-current adjustable voltage source is required. The device maintains performance across a wide input-output differential up to 35 V. Consider the minimum load current requirement of approximately 3.5 mA to ensure proper regulation. The floating regulator design allows operation at high voltages relative to ground, provided the differential limits are respected.

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

The KA350 belongs to the family of 3-terminal adjustable positive voltage regulators. It serves as a functional equivalent to other industry-standard adjustable regulators designed for high-current applications. The device integrates reference voltage generation, error amplification, and pass transistor control into a single monolithic IC structure housed in a standard through-hole package.

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

Compatible substitutes include the LM350 and NJM317. Verify pinout compatibility and thermal resistance specifications when replacing the component. Ensure the alternative device meets the same current and voltage requirements for the specific application environment.