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LM2941CS Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
No. de pieza LM2941CS
Descripción Electrónicos  1A Low Dropout Adjustable Regulator
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2941CS Datasheet(HTML) 2 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Voltage (Survival Voltage,
≤ 100 ms)
LM2941T, LM2941S
60V
LM2941CT, LM2941CS
45V
Internal Power Dissipation (Note 3)
Internally Limited
Maximum Junction Temperature
150˚C
Storage Temperature Range
−65˚C
≤ T
J ≤ +150˚C
Lead Temperature
(Soldering, 10 seconds)
TO-220 (T) Package
260˚C
TO-263 (S) Package
260˚C
ESD susceptibility to be determined.
Operating Ratings
Maximum Input Voltage
26V
Temperature Range
LM2941T
−40˚C
≤ T
J ≤ 125˚C
LM2941CT
0˚C
≤ T
J ≤ 125˚C
LM2941S
−40˚C
≤ T
J ≤ 125˚C
LM2941CS
0˚C
≤ T
J ≤ 125˚C
LM2941J
−55˚C
≤ T
J ≤ 125˚C
LM2941WG
−55˚C
≤ T
J ≤ 125˚C
Electrical Characteristics — LM2941T, LM2941S, LM2941J, LM2941WG
5V
≤ V
O ≤ 20V, VIN = VO + 5V, CO = 22 µF, unless otherwise specified. Specifications in standard typeface apply for TJ =
25˚C, while those in boldface type apply over the full Operating Temperature Range.
Parameter
Conditions
Typ
LM2941J
LM2941WG
Limit
(Note 2) (Note 4)
LM2941T
LM2941S
Limit
(Note 5)
Units
(Limits)
Reference Voltage
5 mA
≤ I
O ≤ 1A (Note 6)
1.275
1.237/1.211
1.237/1.211
V(min)
1.313/1.339
1.313/1.339
V(max)
Line Regulation
V
O +2V ≤ VIN ≤ 26V, IO = 5 mA
4
10/10
10/10
mV/V(max)
Load Regulation
50 mA
≤ I
O ≤ 1A
7
10/10
10/10
mV/V(max)
Output Impedance
100 mADC and 20 mArms
7
m
Ω/V
f
O = 120 Hz
Quiescent Current
V
O +2V ≤ VIN < 26V, IO = 5 mA
10
15/20
15/20
mA(max)
V
IN = VO + 5V, IO = 1A
30
45/60
45/60
mA(max)
RMS Output Noise,
10 Hz–100 kHz
0.003
%
% of V
OUT
I
O = 5mA
Ripple Rejection
f
O = 120 Hz, 1 Vrms, IL = 100 mA
0.005
0.02/0.04
0.02/0.04
%/V(max)
Long Term Stability
0.4
%/1000 Hr
Dropout Voltage
I
O = 1A
0.5
0.8/1.0
0.8/1.0
V(max)
I
O = 100 mA
110
200/200
200/200
mV(max)
Short Circuit Current
V
IN max = 26V (Note 7)
1.9
1.6/1.3
1.6
A(min)
Maximum Line
V
O max 1V above nominal VO
75
60/60
60/60
V(min)
Transient
R
O = 100Ω,T ≤ 100 ms
Maximum Operational
Input Voltage
31
26/26
26/26
V
DC
Reverse Polarity DC
Input Voltage
R
O = 100Ω,VO ≥ −0.6V
−30
−15/−15
−15/−15
V(min)
Reverse Polarity
Transient Input
Voltage
T
≤ 100 ms, R
O = 100Ω
−75
−50/−50
−50/−50
V(min)
ON/OFF Threshold
Voltage ON
I
O ≤ 1A
1.30
0.80/0.80
0.80/0.80
V(max)
ON/OFF Threshold
Voltage OFF
I
O ≤ 1A
1.30
2.00/2.00
2.00/2.00
V(min)
ON/OFF Threshold
Current
V
ON/OFF = 2.0V, IO ≤ 1A
50
100/300
100/300
µA(max)
www.national.com
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