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STMPS2171STR Datasheet(PDF) 10 Page - STMicroelectronics

Part # STMPS2171STR
Description  Enhanced single channel power switches
PDF  34 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPS2171STR Datasheet(HTML) 10 Page - STMicroelectronics

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Functional description
STMPS2141, STMPS2151, STMPS2161, STMPS2171
10/34
Doc ID 13793 Rev 4
3.4
Reversed current blocking
When the switch is OFF (disabled through the EN pin), or when the STMPS device is un-
powered (VCC = 0 V) the switch behaves as an Hi-Z at the output pin, ensuring that no
reverse current will flow into the device when Vi < Vo .
Note:
In the case where the switch is ON, and a voltage higher than VIN is applied to the OUT pin,
a reverse current occurs. This operating condition is not allowed.
3.5
UVLO
When the input voltage drops below critical values, the power switch turns off to prevent
improper operation due to low voltage.



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