The LM7809 is a positive voltage regulator designed to provide a stable 9V output with a current output of 1.5A. It belongs to the LM78 series of voltage regulators and comes in the TO-220 package. The LM7809 ensures a stable output voltage, but it requires an input voltage between 11V and 35V for proper operation. Due to the significant heat loss during operation, a heat sink is recommended, especially for higher currents.
This voltage regulator features thermal overload protection and short circuit protection, making it reliable for both commercial and DIY applications. The IC is ideal for use in various power supply circuits and is commonly found in educational projects.
Output Voltage: 9V (fixed)
Output Current: 1.5A
PSRR / Ripple Rejection: 55 dB
Thermal Overload Protection: Built-in thermal shutdown function
Short Circuit Protection: Built-in short circuit shutdown function
Operating Temperature Range: -40°C to +125°C
Package: TO-220
Minimum Input Voltage: 11V
Maximum Input Voltage: 35V
Junction Temperature Maximum: 125°C
1x Heat Sink Compound
5x LM7809 Voltage Regulators
5x Heat Sinks (2 x 1.5 cm)
5x Screws
Voltage Regulation Circuits
Power Supply Units
Overload and Short Circuit Protection Systems
Commercial and Educational Electronics Projects
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