The 7912 series of 3-terminal regulators is available withfixed output voltages of −5V, −12V, and −15V. These devicesneed only one external component—a compensation capacitorat the output. The 7912 series is packaged in theTO-220 power package and is capable of supplying 1.5A ofoutput current.These regulators employ internal current limiting safe areaprotection and thermal shutdown for protection against virtuallyall overload conditions.Low ground pin current of the 7912 series allows outputvoltage to be easily boosted above the preset value with aresistor divider. The low quiescent current drain of thesedevices with a specified maximum change with line and loadensures good regulation in the voltage boosted mode.For applications requiring other voltages, see LM137datasheet.
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