The physical size of the SOT-223 is too small to contain the full device part number. The package markings indicated are what will appear on the actual device.
Mil-Aero Ordering Information
Temperature
Range
−55°C
Output Voltage
5.0
LM2940J-5.0/883
5962-8958701EA
LM2940WG5.0/883
5962-8958701XA
8.0
–
–
12
LM2940J-12/883
5962-9088401QEA
LM2940WG5-12/883
15
LM2940J-15/883
5962-9088501QEA
LM2940WG5-15/883
Package
J16A
WG16A
≤
T
J
≤
125°C
For information on military temperature range products, please go to the Mil/Aero Web Site at http://www.national.com/appinfo/milaero/index.html.
Connection Diagrams
TO-220 (T) Plastic Package
SOT-223 (MP) 3-Lead
882202
Front View
See NS Package Number TO3B
16-Lead Dual-in-Line Package (J)
882242
Front View
See NS Package Number MP04A
16-Lead Ceramic Surface-Mount Package (WG)
882243
882244
Top View
See NS Package Number J16A
TO-263 (S) Surface-Mount Package
Top View
See NS Package Number WG16A
LLP (LD) 8-Lead
882211
Top View
882212
882246
Side View
See NS Package Number TS3B
Pin 2 and pin 7 are fused to center DAP
Pin 5 and 6 need to be tied together on PCB board
Top View
See NS Package Number LDC08A
www.national.com
2
LM2940/LM2940C
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, J, WG, T, MP
≤
100
ms
LM2940CS, T
≤
1 ms
Internal Power Dissipation
(Note
2)
Maximum Junction Temperature
Storage Temperature Range
Soldering Temperature (Note 3)
TO-220 (T), Wave
TO-263 (S)
60V
45V
Internally Limited
150°C
−65°C
≤
T
J
≤
+150°C
260°C, 10s
235°C, 30s
SOT-223 (MP)
LLP-8 (LD)
ESD Susceptibility (Note 4)
260°C, 30s
235°C, 30s
2 kV
(Note 1)
26V
−40°C
≤
T
J
≤
125°C
Operating Conditions
Input Voltage
Temperature Range
LM2940T, LM2940S
LM2940CT, LM2940CS
LM2940IMP
LM2940J, LM2940WG
LM2940LD
−55°C
≤
T
J
≤
125°C
−40°C
≤
T
J
≤
125°C
−40°C
≤
T
A
≤
85°C
0°C
≤
T
J
≤
125°C
Electrical Characteristics
V
IN
= V
O
+ 5V, I
O
= 1A, C
O
= 22 μF,
unless otherwise specified.
Boldface limits apply over the entire operating temperature
range of the indicated device.
All other specifications apply for T
A
= T
J
= 25°C.
Output Voltage (V
O
)
Parameter
Conditions
Typ
5V
LM2940
Limit
(Note 5)
4.85/4.75
5.15/5.25
Line Regulation
Load Regulation
V
O
+ 2V
≤
V
IN
≤
26V,
I
O
= 5 mA
50 mA
≤
I
O
≤
1A
LM2940, LM2940/883
LM2940C
Output
Impedance
Quiescent
Current
100 mADC and
20 mArms,
f
O
= 120 Hz
V
O
+2V
≤
V
IN
≤
26V,
I
O
= 5 mA
LM2940, LM2940/883
LM2940C
V
IN
= V
O
+ 5V,
I
O
= 1A
Output Noise
Voltage
Ripple Rejection
10 Hz − 100 kHz,
I
O
= 5 mA
f
O
= 120 Hz, 1 V
rms
,
I
O
= 100 mA
LM2940
LM2940C
f
O
= 1 kHz, 1 V
rms
,
I
O
= 5 mA
Long Term
Stability
Dropout Voltage
I
O
= 1A
I
O
= 100 mA
20
0.5
110
0.8/1.0
150/200
0.7/1.0
150/200
32
0.5
110
0.8/1.0
150/200
0.7/1.0
150/200
mV/
1000 Hr
V
MAX
mV
MAX
72
72
60/54
60
60/50
66
66
54/48
54
54/48
dB
MIN
dB
MIN
150
700/700
240
1000/1000
μV
rms
10
10
30
15/20
15
45/60
50/60
30
45/60
50/60
mA
MAX
15/20
10
15/20
15/20
mA
MAX
35
35
35
50/80
50
1000/1000
50/100
55
55
55
80/130
80
1000/1000
mΩ
80/130
mV
MAX
20
50
LM2940/883
Limit
(Note 6)
4.85/4.75
5.15/5.25
40/50
20
Typ
8V
LM2940
Limit
(Note 5)
7.76/7.60
8.24/8.40
80
LM2940/883
Limit
(Note 6)
7.76/7.60
8.24/8.40
50/80
Units
6.25V
≤
V
IN
≤
26V
Output Voltage
5 mA
≤
I
O
≤
1A
5.00
8.00
9.4V
≤
V
IN
≤
26V
V
MIN
V
MAX
mV
MAX
3
www.national.com
LM2940/LM2940C
Output Voltage (V
O
)
Parameter
Short Circuit
Current
Maximum Line
Transient
Conditions
(Note 7)
R
O
= 100Ω
LM2940, T
≤
100 ms
LM2940/883, T
≤
20 ms
LM2940C, T
≤
1 ms
Reverse Polarity
DC Input Voltage
Reverse Polarity
Transient Input
Voltage
R
O
= 100Ω
LM2940, LM2940/883
LM2940C
R
O
= 100Ω
LM2940, T
≤
100 ms
LM2940/883, T
≤
20 ms
LM2940C, T
≤
1 ms
−55
−75
−30
−30
55
45
75
Typ
5V
LM2940
Limit
(Note 5)
1.6
LM2940/883
Limit
(Note 6)
1.5/1.3
Typ
8V
LM2940
Limit
(Note 5)
1.6
LM2940/883
Limit
(Note 6)
1.6/1.3
Units
1.9
1.9
A
MIN
60/60
40/40
75
55
−15/−15
−30
−30
−75
−45/−45
60/60
40/40
45
−15/−15
−15
−50/−50
−45/−45
−15/−15
V
MIN
−15/−15
−15
−50/−50
−45/−45
V
MIN
V
MIN
Electrical Characteristics
V
IN
= V
O
+ 5V, I
O
= 1A, C
O
= 22 μF,
unless otherwise specified.
Boldface limits apply over the entire operating temperature
range of the indicated device.
All other specifications apply for T
A
= T
J
= 25°C.
Output Voltage (V
O
)
Parameter
Conditions
Typ
9V
LM2940
Limit
(Note 5)
8.73/8.55
9.27/9.45
Line Regulation
Load Regulation
V
O
+ 2V
≤
V
IN
≤
26V,
I
O
= 5 mA
50 mA
≤
I
O
≤
1A
LM2940
LM2940C
Output Impedance
100 mADC and
20 mArms,
f
O
= 120 Hz
Quiescent
Current
V
O
+2V
≤
V
IN
< 26V,
I
O
= 5 mA
LM2940
LM2940C
V
IN
= V
O
+ 5V, I
O
= 1A
Output Noise
Voltage
Ripple Rejection
10 Hz − 100 kHz,
I
O
= 5 mA
f
O
= 120 Hz, 1 V
rms
,
I
O
= 100 mA
LM2940
LM2940C
Long Term
Stability
64
64
34
52/46
52
36
mV/
1000 Hr
63
51/45
dB
MIN
10
10
30
270
15/20
15
45/60
30
300
45/60
mA
MAX
μV
rms
10
15/20
mA
MAX
60
60
60
90/150
90
65
mΩ
65
100/165
mV
MAX
20
90
20
Typ
10V
LM2940
Limit
(Note 5)
9.70/9.50
10.30/10.50
100
Units
10.5V
≤
V
IN
≤
26V
Output Voltage
5 mA
≤
I
O
≤
1A
9.00
11.5V
≤
V
IN
≤
26V
10.00
V
MIN
V
MAX
mV
MAX
www.national.com
4
LM2940/LM2940C
Output Voltage (V
O
)
Parameter
Dropout Voltage
Short Circuit
Current
Maximum Line
Transient
R
O
= 100Ω
T
≤
100 ms
LM2940
LM2940C
Reverse Polarity
DC Input Voltage
Reverse Polarity
Transient Input
Voltage
R
O
= 100Ω
LM2940
LM2940C
R
O
= 100Ω
T
≤
100 ms
LM2940
LM2940C
−75
−55
−30
−30
75
55
I
O
= 1A
I
O
= 100 mA
(Note 7)
Conditions
Typ
0.5
110
1.9
9V
LM2940
Limit
(Note 5)
0.8/1.0
150/200
1.6
Typ
0.5
110
1.9
10V
LM2940
Limit
(Note 5)
0.8/1.0
150/200
1.6
Units
V
MAX
mV
MAX
A
MIN
60/60
45
−15/−15
−15
75
60/60
V
MIN
−30
−15/−15
V
MIN
−50/−50
−45/−45
−75
−50/−50
V
MIN
Electrical Characteristics
V
IN
= V
O
+ 5V, I
O
= 1A, C
O
= 22 μF,
unless otherwise specified.
Boldface limits apply over the entire operating temperature
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