The LM7912 is a 12V negative voltage regulator from the LM79XX series. It provides a fixed 12V negative output, with peak output current of 2.2A and an average output current of up to 1A. The IC is housed in a TO-220 package, making it easy to integrate into power supply circuits.
To ensure stable operation, the IC requires minimal external components—primarily two filter capacitors (input and output). These capacitors can be either solid tantalum or electrolytic types and should be placed as close as possible to the IC with short leads.
The LM7912 features built-in thermal overload protection and short-circuit current limiting, providing robustness and reliability in a variety of applications. For circuits that demand higher currents, a heat sink is essential to maintain thermal stability and ensure the IC operates at its maximum 1.5A load capacity.
12V Negative Output: Provides a stable -12V regulated output voltage.
Peak Output Current: Capable of delivering 2.2A peak output current.
Average Output Current: Delivers up to 1A of output current.
Built-in Protections: Includes thermal overload protection and short-circuit current limiting for enhanced safety and reliability.
TO-220 Package: Suitable for efficient heat dissipation.
Input Voltage Range: -14.5V to -27V with a required input voltage of 2V to 3V above the output voltage.
Negative Power Supplies: Provides negative voltage regulation for electronic circuits and systems.
Voltage Conversion: Suitable for circuits requiring a regulated negative voltage source.
Signal Processing: Can be used in applications where stable negative voltages are needed for analog and digital signal processing.
For efficient performance, especially under high loads, the use of a heat sink is highly recommended to prevent overheating.
5 x LM7912 12V Negative Voltage Regulator IC (TO-220 Package).
Product specifications, features, and design may change over time due to product updates or improvements.
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