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LF00AB Datasheet(PDF) 1 Page - STMicroelectronics

Part No. LF00AB
Description  VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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LF00AB Datasheet(HTML) 1 Page - STMicroelectronics

 
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LF00AB/C
SERIES
VERY LOW DROP
VOLTAGE REGULATORS WITH INHIBIT
July 1999
s
VERY LOW DROPOUT VOLTAGE (0.45V)
s
VERY LOW QUIESCENT CURRENT
(TYP. 50
µA IN OFF MODE, 500µAIN ON
MODE)
s
OUTPUT CURRENT UP TO 500 mA
s
LOGIC-CONTROLLED ELECTRONIC
SHUTDOWN
s
OUTPUT VOLTAGES OF 1.25; 1.5; 1.8; 2.5;
2.7; 3; 3.3; 3.5; 4; 4.5; 4.7; 5; 5.2; 5.5; 6; 8; 8.5;
9; 12V
s
INTERNAL CURRENT AND THERMAL LIMIT
s
ONLY 2.2
µF FOR STABILITY
s
AVAILABLE IN
± 1% (AB) OR ± 2% (C)
SELECTION AT 25
oC
s
SUPPLY VOLTAGE REJECTION: 80 db (TYP.)
s
TEMPERATURE RANGE: -40 TO 125
oC
DESCRIPTION
The LF00 series are very Low Drop regulators
available
in
PENTAWATT,
TO-220,
ISOWATT220, DPAK and PPAK package and in
a wide range of output voltages.
The very Low Drop voltage (0.45V) and the very
low quiescent current make them particularly
suitable for Low Noise, Low Power applications
and specially in battery powered systems.
In the 5 pins configuration (PENTAWATT and
PPAK) a Shutdown Logic Control function is
available (pin 2, 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.
In the three terminal configuration the device has
the same electrical performance, but is fixed in
SCHEMATIC DIAGRAM
PPAK
DPAK
PENTAWATT
TO-220
ISOWATT220
®
1/32


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