The TS7918CZ is a three-terminal negative voltage regulator manufactured by Taiwan Semiconductor. It provides a fixed output voltage of -18V and is designed for a wide range of applications requiring stable negative voltage regulation. The regulator is easy to use and incorporates internal current limiting, thermal shutdown, and safe-area compensation, making it robust and reliable.

Applications:

• Negative voltage regulation
• Power supplies
• Linear regulators
• Post regulation for switching supplies
• On-card regulation

Features:

• Fixed output voltage: -18V
• Output current up to 1A
• Internal thermal overload protection
• Internal short-circuit current limiting
• Output transistor safe-area compensation
• Available in TO-220 package

Benefits:

• Provides a stable and accurate -18V output voltage for various applications.
• Protects itself and the load from damage due to over-temperature conditions.
• Prevents damage due to short circuits, enhancing reliability.
• Ensures stable operation over a wide range of input voltages and output currents.
• Easy to use with minimal external components required.
• Suitable for applications requiring up to 1A output current.

Technical Specifications:

The TS7918CZ has a fixed output voltage of -18V with a typical accuracy of ±4%. It can provide up to 1A of output current. The input voltage range is typically -21V to -35V. It incorporates thermal shutdown at a junction temperature of approximately 150°C. The dropout voltage is typically around 2V. Refer to the Taiwan Semiconductor datasheet for detailed specifications including ripple rejection, quiescent current, and thermal resistance.

This negative voltage regulator is commonly used in industrial equipment, power supplies, and other electronic systems where a stable -18V supply is required. Its built-in protection features ensure robust and reliable operation.