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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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LD39200 Scheda tecnica(PDF) 13 Page - STMicroelectronics |
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LD39200 Scheda tecnica(HTML) 13 Page - STMicroelectronics |
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13 / 30 page  LD39200 Application information DocID025637 Rev 1 13/30 6.6 Reverse current protection The device avoids the reverse current to flow from the output to the input during any operating condition (EN=0 or EN=1, VIN>VOUT+VDROP). During fast turn-on/off this function prevents a big current from flowing to the input. Moreover it is used to avoid the reverse current to flow from the output pin to the input one, when other power supplies, providing a voltage higher than the input voltage, are connected to the output pin. If a power supply, providing a voltage lower than LDO output voltage, is connected to OUT pin, LDO works in current protection, causing high power dissipation inside the device. When the device is disabled (EN=low) and VOUT>0 V, a small current (few µA) is sunk from the OUT pin. |
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