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Home2026June26
78xx voltage regulator selection guide showing TO-220 linear regulators, LM317 adjustable regulator circuit, capacitors, PCB and heatsink on a clean white electronics workbench

78xx Voltage Regulator Selection Guide: 7805, 7812, 7815, 7824 & LM317 Comparison

Blog June 26, 2026 June 26, 2026 卡尔

You need a 5V rail for a microcontroller. Your motor driver wants 12V. The op-amp circuit runs best at ±15V. Three different voltages, three different regulator part numbers — and

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