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LM2941CT 데이터시트(PDF) 1 Page - Texas Instruments

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부품명 LM2941CT
상세설명  1A Low Dropout Adjustable Regulator
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IN
OUT
GND
CIN
470 nF
COUT
22 µF
VIN
6 V to 26 V
VOUT
5 V to 20 V
ON/OFF
ADJ
R1
R2
LM2941
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LM2941, LM2941C
SNVS770I – JUNE 1999 – REVISED JANUARY 2015
LM2941x 1-A Low Dropout Adjustable Regulator
1 Features
3 Description
The LM2941 positive voltage regulator features the
1
Operating VIN Range: 6 V to 26 V
ability to source 1 A of output current with a typical
Output Voltage Adjustable From 5 V to 20 V
dropout voltage of 0.5 V and a maximum of 1 V over
Dropout Voltage Typically 0.5 V at IOUT = 1 A
the
entire
temperature
range.
Furthermore,
a
quiescent current reduction circuit has been included
Output Current in Excess of 1 A
which reduces the ground pin current when the
Trimmed Reference Voltage
differential between the input voltage and the output
Reverse Battery Protection
voltage exceeds approximately 3 V. The quiescent
current with 1 A of output current and an input-output
Internal Short-Circuit Current Limit
differential of 5 V is therefore only 30 mA. Higher
Mirror Image Insertion Protection
quiescent currents only exist when the regulator is in
P+ Product Enhancement Tested
the dropout mode (VIN − VOUT ≤ 3 V).
TTL, CMOS Compatible ON/OFF Switch
Designed also for vehicular applications, the LM2941
WSON Space-Saving Package
and all regulated circuitry are protected from reverse
battery installations or two-battery jumps. During line
2 Applications
transients, such as load dump when the input voltage
can momentarily exceed the specified maximum
Industrial
operating voltage, the regulator will automatically shut
Automotive
down to protect both the internal circuits and the load.
Familiar regulator features such as short circuit and
thermal overload protection are also provided.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
WSON (8)
4.00 mm x 4.00 mm
TO-263 (5)
10.16 mm x 8.42 mm
LM2941
TO-220 (5)
14.986 mm x 10.16 mm
TO-220 (5)
10.16 mm x 8.51 mm
TO-263 (5)
10.16 mm x 8.42 mm
LM2941C
TO-220 (5)
14.986 mm x 10.16 mm
TO-220 (5)
10.16 mm x 8.51 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Schematic
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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