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LP3994 Scheda tecnica(PDF) 10 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Il numero della parte LP3994
Spiegazioni elettronici  50mA CMOS Voltage Regulator with Enable Control
PDF  12 Pages
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Produttore elettronici  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

LP3994 Scheda tecnica(HTML) 10 Page - National Semiconductor (TI)

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Application Hints (Continued)
ENABLE
The LP3994 features an active high Enable pin, V
EN, which
turns the device on when pulled high. When not enabled the
regulator output is off and the device typically consumes
1nA.
If the application does not require the Enable switching
feature, the V
EN pin should be tied to VIN to keep the
regulator output permanently on.
To ensure proper operation, the signal source used to drive
the V
EN input must be able to swing above and below the
specified turn-on/off voltage thresholds listed in the Electrical
Characteristics section under V
IL and VIH.
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