300mA, 28 V low-dropout voltage regulator, with 5 µA quiescent current

300 mA, 28 V low-dropout voltage regulator, with 5 µA quiescent current
Silicon Controlled Rectifier, 2700A I(T)RMS, 1400000mA I(T), 600V V(DRM), 600V V(RRM), 1 Element, TO-200AC, BPUK-2