The KA78M12 is a three-terminal positive voltage regulator that delivers a stable 12V output voltage. It is designed for a variety of applications, providing a simple and effective solution for voltage regulation. This device incorporates internal current limiting and thermal shutdown protection, ensuring robust operation.

Applications

• Voltage regulation in electronic circuits
• Power supplies for microcontrollers and digital logic
• Post-regulation for switching power supplies
• Battery chargers
• Linear regulators for various electronic devices

Features

• Fixed 12V output voltage
• Output current up to 500mA
• Internal thermal overload protection
• Short-circuit current limiting
• No external components required for fixed voltage operation

Benefits

• Provides a stable and precise 12V output voltage for sensitive electronic components.
• Simple circuit design minimizes the number of external components required, reducing cost and complexity.
• Protects the regulator from damage due to excessive heat dissipation.
• Safeguards the regulator and connected circuitry from damage in the event of a short circuit.
• Easy to use and integrate into a wide range of electronic projects.

Additional Details

The KA78M12 requires an input voltage greater than 12V, typically around 14.5V, to maintain proper regulation. The maximum input voltage should not exceed 35V. For optimal performance, a small bypass capacitor (e.g., 0.33µF) is recommended at the input and a 0.1µF capacitor at the output to improve stability and transient response. The device operates over a temperature range of -40°C to +125°C.