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LD2980ABM30TR Datasheet(PDF) 15 Page - STMicroelectronics

Part No. LD2980ABM30TR
Description  Ultra low drop voltage regulators compatible with low ESR inhibit output capacitors
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LD2980ABM30TR Datasheet(HTML) 15 Page - STMicroelectronics

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LD2980ABxx - LD2980Cxx
Application notes
15/23
7.6
Reverse current
The power transistor used in the LD2980 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, according to the test circuit in Figure 22, 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 22.
Reverse current test circuit


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