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LD2982AM18R データシート(PDF) 14 Page - STMicroelectronics

部品番号 LD2982AM18R
部品情報  Very low drop and low noise voltage regulator with inhibit function, low ESR capacitors compatible
PDF  20 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LD2982AM18R データシート(HTML) 14 Page - STMicroelectronics

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Application notes
LD2982Axx - LD2982Bxx
14/20
6.6
Reverse current
The power transistor used in the LD2982 has not an inherent diode connected between the
regulator input and output. If the output is forced above the input, no current will flow from
the output to the input across the series pass transistor. When a VREV voltage is applied on
the output, the reverse current measured flows to the GND across the two feedback
resistors. This current typical value is 160 µA. R1 and R2 resistors are implanted type;
typical values are, respectively, 42.6 k
Ω and 51.150 kΩ.
Figure 17.
Reverse current test circuit



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