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L4931 Datasheet(PDF) 1 Page - STMicroelectronics

Part No. L4931
Description  VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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L4931 Datasheet(HTML) 1 Page - STMicroelectronics

 
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January 2004
s
VERY LOW DROPOUT VOLTAGE (0.4V)
s
VERY LOW QUIESCENT CURRENT
(TYP. 50 µA IN OFF MODE, 600µA IN ON
MODE)
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OUTPUT CURRENT UP TO 250 mA
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LOGIC-CONTROLLED ELECTRONIC
SHUTDOWN
s
OUTPUT VOLTAGES OF 1.25; 1.5; 2.5; 2.7;
3; 3.3; 3.5; 4; 4.5; 4.7; 5; 5.2; 5.5; 6; 8; 12V
s
INTERNAL CURRENT AND THERMAL LIMIT
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ONLY 2.2µF FOR STABILITY
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AVAILABLE IN ± 1% (AB) OR 2% (C)
SELECTION AT 25°C
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SUPPLY VOLTAGE REJECTION: 70db TYP.
FOR 5V VERSION
s
TEMPERATURE RANGE: -40 TO 125°C
DESCRIPTION
The L4931 series are very Low Drop regulators
available in TO-220, SO-8, DPAK, PPAK and
TO-92 packages and in a wide range of output
voltages.
The very Low Drop voltage (0.4V) and the very
low quiescent current make them particularly
suitable for Low Noise, Low Power applications
and specially in battery powered systems.
In PPAK and SO-8 packages a Shutdown Logic
Control function is available TTL compatible. This
means that when the device is used as a local
regulator, it is possible to put a part of the board in
standby, decreasing the total power consumption.
It requires only a 2.2 µF capacitor for stability
allowing space and cost saving.
L4931
SERIES
VERY LOW DROP
VOLTAGE REGULATORS WITH INHIBIT
SCHEMATIC DIAGRAM
TO-220
SO-8
TO-92
DPAK
PPAK


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