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STK740-471 Datasheet(PDF) 4 Page - Sanyo Semicon Device |
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STK740-471 Datasheet(HTML) 4 Page - Sanyo Semicon Device |
4 / 10 page STK740-470 No.6107–4/10 Test Circuit 1 2 3 4 5 6 7 8 9 10 11 12 DC INPUT GND OUTPUT (5V) ON/OFF Vo adjust L1 GND C1 C2 FB C1 : 47 µF/25V (OS capacitor) C2 : 1000 µF/16V×2 L1 : 30 µH FB : Ferrite-bead core Overvoltage Protection Circuit In a constant-voltage power supply circuit output voltage may generally exceed the stipulated rating (equivalent to input voltage) when the circuit is broken down or the IC and the printed circuit board is wrongly soldered. Therefore overvoltage protection circuit is recommended to use to minimize the damages caused by the overvoltage. Sample the overvoltage protection circuit DC INPUT GND OUTPUT GND Regulator FUSE SCR CR |
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