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LM2940CT-9.0 数据表(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 LM2940CT-9.0
功能描述  1A Low Dropout Regulator
Download  19 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LM2940CT-9.0 数据表(HTML) 4 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.
LM2940S, T, MP
≤ 100 ms
60V
LM2940CS, T
≤ 1 ms
45V
Internal Power Dissipation
(Note 2)
Internally Limited
Maximum Junction Temperature
150˚C
Storage Temperature Range
−65˚C
≤ T
J
≤ +150˚C
Lead Temperature, Time for Wave Soldering
TO-220 (T) Package
260˚C, 10s
TO-263 (S) Package
260˚C, 4s
SOT-223 (MP) Package
260˚C, 4s
ESD Susceptibility (Note 3)
2 kV
Operating Conditions (Note 1)
Input Voltage
26V
Temperature Range
LM2940T, LM2940S
−40˚C
≤ T
J
≤ 125˚C
LM2940CT, LM2940CS
0˚C
≤ T
J
≤ 125˚C
LM2940IMP
−40˚C
≤ T
J
≤ 85˚C
LM2940J, LM2940WG
−55˚C
≤ T
J
≤ 125˚C
LM2940LD
−40˚C
≤ T
J
≤ 125˚C
Electrical Characteristics
V
IN =VO + 5V, IO = 1A, CO = 22 µF, unless otherwise specified. Boldface limits apply over the entire operating tempera-
ture range of the indicated device. All other specifications apply for T
A =TJ = 25˚C.
Output Voltage (V
O)5V
8V
Units
LM2940
LM2940/883
LM2940
LM2940/883
Parameter
Conditions
Typ
Limit
Limit
Typ
Limit
Limit
(Note 4)
(Note 5)
(Note 4)
(Note 5)
6.25V
≤ V
IN
≤ 26V
9.4V
≤ V
IN
≤ 26V
Output Voltage
5 mA
≤ I
O
≤ 1A
5.00
4.85/4.75
4.85/4.75
8.00
7.76/7.60
7.76/7.60
V
MIN
5.15/5.25
5.15/5.25
8.24/8.40
8.24/8.40
V
MAX
Line Regulation
V
O +2V
≤ V
IN
≤ 26V,
20
50
40/50
20
80
50/80
mV
MAX
I
O =5 mA
Load Regulation
50 mA
≤ I
O
≤ 1A
LM2940, LM2940/883
35
50/80
50/100
55
80/130
80/130
mV
MAX
LM2940C
35
50
55
80
Output
100 mADC and
Impedance
20 mArms,
35
1000/1000
55
1000/1000
m
f
O = 120 Hz
Quiescent
V
O +2V
≤ V
IN
≤ 26V,
Current
I
O =5 mA
LM2940, LM2940/883
10
15/20
15/20
10
15/20
15/20
mA
MAX
LM2940C
10
15
V
IN =VO + 5V,
30
45/60
50/60
30
45/60
50/60
mA
MAX
I
O =1A
Output Noise
10 Hz − 100 kHz,
150
700/700
240
1000/1000
µV
rms
Voltage
I
O =5 mA
Ripple Rejection
f
O = 120 Hz, 1 Vrms,
I
O = 100 mA
LM2940
72
60/54
66
54/48
dB
MIN
LM2940C
72
60
66
54
f
O = 1 kHz, 1 Vrms,
60/50
54/48
dB
MIN
I
O =5 mA
Long Term
20
32
mV/
Stability
1000 Hr
Dropout Voltage
I
O = 1A
0.5
0.8/1.0
0.7/1.0
0.5
0.8/1.0
0.7/1.0
V
MAX
I
O = 100 mA
110
150/200
150/200
110
150/200
150/200
mV
MAX
Short Circuit
Current
(Note 6)
1.9
1.6
1.5/1.3
1.9
1.6
1.6/1.3
A
MIN
www.national.com
4


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