LM137 and LM337 are three-terminal adjustable negative voltage regulators with output voltage adjustable down to VREF, 1.5A guaranteed output current, 0.3%/V typical load regulation, 0.01%/V typical line regulation, constant current limit with temperature, 77dB ripple rejection, standard 3-lead transistor packages, excellent thermal regulation: 0.002%/V and 50ppm/°C temperature coefficient