This part is a kind of semiconductor called LM120.

Function of this product has Series 3-Terminal Negative Regulators.

Manufacturers : National Semiconductor

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LM120 LM320 Series 3-Terminal Negative Regulators November 1994 LM120 LM320 Series 3-Terminal Negative Regulators General Description The LM120 series are three-terminal negative regulators with a fixed output voltage of b5V b12V and b15V and up to 1 5A load current capability Where other voltages are required the LM137 and LM137HV series provide an output voltage range of b1 2V to b47V The LM120 need only one external component a compensation capacitor at the output making them easy to apply Worst case guarantees on output voltage deviation due to any combination of line load or temperature variation assure satisfactory system operation Exceptional effort has been made to make the LM120 Series immune to overload conditions The regulators have current limiting which is independent of tem [ ... ]

LM120 PDF Datasheet Download