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LD2985AM30R Datasheet(PDF) 15 Page - STMicroelectronics

No. de pieza LD2985AM30R
Descripción Electrónicos  Very low drop and low noise voltage regulator low ESR capacitors compatible, with inhibit function
PDF  21 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LD2985AM30R Datasheet(HTML) 15 Page - STMicroelectronics

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LD2985Axx, LD2985Bxx
Application notes
15/21
6.6
Reverse current
The power transistor used in the LD2985 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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