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LD2985AM18R Datasheet(PDF) 10 Page - STMicroelectronics

Part # LD2985AM18R
Description  VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR LOW ESR CAP. COMPATIBLE, WITH INHIBIT FUNCTION
PDF  13 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LD2985AM18R Datasheet(HTML) 10 Page - STMicroelectronics

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LD2985 SERIES
10/13
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 160µA. R1 and R2
resistors are implanted type; typical values are, respectively, 42.6 K
Ω and 51.150 KΩ.
Figure 15 : Reverse Current Test Circuit



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