7918 Negative Voltage Regulator IC (TO 220, Negative 18V, 1A)

The 7918 is a fixed negative linear voltage regulator IC designed to provide a regulated negative 18V output from a suitable negative input supply. Its TO 220 package supports higher current handling and allows heat sinking for thermal management. It is commonly used in dual polarity power supplies, analog circuits, and electronic equipment requiring a stable negative voltage rail.

Key Features -

• Fixed negative output voltage of negative 18V

• Output current up to 1A, subject to operating conditions

• TO 220 package for through hole mounting

• Internal thermal overload protection

• Short circuit protection

• Suitable for regulated negative power supply circuits

Specifications -

• IC Type: Negative Linear Voltage Regulator

• Output Voltage: Negative 18V

• Input Voltage: Negative 20V to negative 35V (verify the allowable range for the specific manufacturer)

• Output Current: Up to 1A, subject to thermal and electrical limits

• Package Type: TO 220

• Mounting Type: Through Hole

• Operating Temperature: Negative 40 C to positive 125 C (verify the specific device datasheet)

Applications -

• Dual polarity power supply circuits

• Analog and signal processing circuits

• Operational amplifier power supplies

• Negative voltage rails for electronic equipment

• Regulated power supplies for control circuits