ONSEMI MC7918CTG -18V 1A Negative Fixed LDO Voltage Regulator TO-220

The ONSEMI MC7918CTG is a fixed output, negative linear voltage regulator delivering -18V with a maximum output current of 1A. This through-hole device is housed in a TO-220 package with 3 pins and is designed for robust performance across demanding industrial and power management applications.

Key Features

• Internal thermal overload protection
• Internal short circuit current limiting
• Output transistor safe-area compensation
• 4% output voltage tolerance
• No external components required for operation

The regulator includes comprehensive protection mechanisms, including thermal shutdown, current limiting, and safe-area compensation, ensuring remarkable ruggedness under most operating conditions. With adequate heatsinking, it can deliver output currents exceeding 1A, making it a versatile solution for various negative rail applications.

Specifications

• Output Type: Fixed
• Input Voltage Range: -35V to -21V
• Output Voltage (Nominal): -18V
• Output Current (Max): 1A
• Dropout Voltage (Typical @ Current): 1.3V
• Operating Temperature Range: 0°C to +125°C
• Package: TO-220 (Through Hole)
• Number of Pins: 3

With its -18V output and 1A capability, this regulator is essential for stable negative voltage supplies in a wide range of electronic circuits. The TO-220 package allows for efficient heatsinking, ensuring reliable performance in high-current environments.