7909 Negative Voltage Regulator IC (TO-220, -9V, 1A)

The 7909 is a fixed negative linear voltage regulator IC designed to provide a regulated -9V 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 -9V

• 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: -9V

• Input Voltage: -11V to -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: -40 C to +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