HOW TO TEST ICs Chips VOLTAGE REGULATOR
IC VOLTAGE REGULATOR TESTING / test integrated circuit
IC Voltage Regulator part number 78XX 79XX series are popular ICs that use on many power supply circuit. Regulate voltage function is necessary for every electronic circuits so we always find these ICs on many circuits , The ICs is small and has many package to choose. The basic package is TO-220 and TO-3 as shown on photo below. 78XX series is for positive output for part number example 7805 = 5VDC , 7812 = 12VDC , 7815 = 15VDC etc. 79XX series is for negative output for part number example 7 905 = - 5VDC , 7912 = -12VDC , 7915 = -15VDC etc. The part number has L at the middle like 78L05 , 78L12 , 78L15 means it has output current around 100mA and part number has T at end like 7805T , 7812T , 7815T
