The KA7912A is a three-terminal negative voltage regulator suitable for a wide range of applications. This device provides a fixed -12V output with a specified accuracy, making it a reliable choice for powering analog circuits, communication equipment, and other applications requiring a stable negative voltage source.

Applications

• Power supplies for analog circuits
• Communication equipment voltage regulation
• Instrumentation and control systems
• Linear regulators for various electronic devices

Features

• Fixed output voltage of -12V
• Output current up to 1A
• Internal thermal overload protection
• Internal short circuit current limiting
• Output transistor safe-area compensation

Benefits

• Provides a stable and accurate -12V regulated output
• Simplifies power supply design with minimal external components
• Protects against overheating and short circuits, enhancing reliability
• Reduces the risk of damage due to excessive current draw
• Cost-effective solution for negative voltage regulation

Additional Details

The KA7912A requires minimal external components, typically only input and output capacitors for stability. The internal protection features ensure robust performance under various operating conditions. The device is available in a variety of packages including TO-220, allowing for efficient heat dissipation. It is designed to operate over a wide temperature range. The dropout voltage is relatively low, ensuring the regulator maintains regulation even with modest input voltage variations. The KA7912A is a pin-to-pin compatible alternative to other industry-standard -12V regulators, offering flexibility in design and sourcing.