LM7809, 9V Positive Voltage Regulator, TO-220

The LM7809 is a three-terminal positive voltage regulator that delivers a stable, regulated +9V output from a higher unregulated input supply. Supplied in the widely used TO-220 package, it has three pins: a positive input, a positive output and a common ground shared between input and output.

Capable of supplying up to 1.5A of output current, the LM7809 accepts input voltages between 11V and 35V, giving it comfortable headroom for a range of power supply designs. Built-in thermal overload and short-circuit current limiting protect the regulator against virtually all common overload conditions.

• Function – Positive voltage regulator
• Output voltage – +9V
• Output current – Up to 1.5A
• Input voltage range – 11V minimum to 35V maximum
• Operating current (IQ) – 5mA
• Protection – Internal thermal overload and short-circuit protection
• Junction temperature – Max 125°C
• Package – TO-220 power package

Whether you need a steady 9V rail for a sensor, an amplifier stage or a general-purpose power supply, the LM7809 delivers dependable regulation with minimal external components. The LM7809 9V Positive Voltage Regulator is a reliable staple for any DIY power electronics project.