IC Pinout Finder Type a part number to see which pin does what
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The notch or dot marks pin 1. On a DIP chip, pins are counted down the left side and back up the right side (anticlockwise, seen from the top). Always check the datasheet before you power a new circuit.
About Voltage Regulator ICs
Linear and switching voltage regulator ICs: 7805 to 7824 positive regulators, 7905 to 7915 negative regulators, LM317, LM337 and LM350 adjustable regulators, LM1117 and AMS1117 3.3 V LDOs, LM723, and LM2596 buck regulators. Each listing shows the pin order.






















