The KA378R33/KIA378R33PI-U/P is a 3.3V fixed output LDO (Low Dropout) voltage regulator manufactured by KEC. It's designed to provide a stable and regulated 3.3V output from a higher input voltage with minimal voltage drop, making it ideal for various electronic applications requiring a clean and reliable 3.3V power supply.

Applications

• Microcontroller Power Supplies
• Logic Circuits
• Communication Equipment
• Consumer Electronics
• Battery-Powered Devices

Features

• 3.3V Fixed Output Voltage: Provides a precise and stable 3.3V output.
• Low Dropout Voltage: Ensures regulation even with a small input-output voltage difference.
• Overcurrent Protection: Protects the regulator and the load from excessive current draw.
• Thermal Shutdown Protection: Prevents damage from overheating.
• Short Circuit Protection: Safeguards the regulator and the load during short circuit conditions.
• Built-in Protection Diodes: Enhances robustness against reverse polarity and transients.

Benefits

• Stable Power Supply: Provides a consistent and reliable 3.3V power source for sensitive electronic components.
• Efficient Operation: Low dropout voltage minimizes power loss and improves efficiency, especially in battery-powered applications.
• Protection Against Faults: Built-in protection features enhance system reliability and prevent damage.
• Simplified Design: Fixed output voltage and integrated protection simplify circuit design.
• Wide Operating Temperature Range: Suitable for use in various environmental conditions.

Additional Details

The KA378R33/KIA378R33PI-U/P has a low quiescent current, which minimizes power consumption during standby mode. It requires minimal external components for operation, further simplifying the design. The device is available in various packages depending on the exact part number (e.g., TO-220, TO-252). The regulator is designed to meet industry standards for safety and EMC. It's also RoHS compliant and lead-free. The input voltage range must be above the output voltage by the dropout voltage. The output is stable under various load conditions. The specific package type will influence the maximum power dissipation capabilities.