LM2937IMP-12 National Semiconductor, LM2937IMP-12 Datasheet - Page 4

• Manufacturer Part Number: LM2937IMP-12
• Description: Linear Voltage Regulator IC
• Manufacturer: National Semiconductor

Specifications of LM2937IMP-12

• No. Of Pins: 4
• Output Current: 0.5A
• Peak Reflow Compatible (260 C): No
• Supply Voltage: 26V
• Current Rating: 500A
• Output Voltage Max: 12V
• Supply Voltage Max: 26V
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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Output Voltage
Load Regulation
Output Noise
Voltage
Long Term Stability
Dropout Voltage
Short-Circuit Current
Peak Line Transient
Voltage
Maximum Operational
Line Regulation
Quiescent Current
Input Voltage
Reverse DC
Input Voltage
Reverse Transient
Input Voltage
Electrical Characteristics
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device
outside of its rated Operating Conditions.
Note 2: The maximum allowable power dissipation at any ambient temperature is P
eration, T
and the electrical specifications do not apply. If the die temperature rises above 150˚C, the LM2937 will go into thermal shutdown. For the LM2937, the
junction-to-ambient thermal resistance
with a heatsink,
or SOT-223 packages are used, the thermal resistance can be reduced by increasing the P.C. board copper area thermally connected to the package (see Application
Hints for more information on heatsinking).
Note 3: ESD rating is based on the human body model, 100 pF discharged through 1.5 k .
Note 4: Typicals are at T
V
age, C
indicted device., all other specifications are for T
IN
= V
OUT
Parameter
A
NOM
is the ambient temperature, and
= 10 µF unless otherwise indicated. Boldface limits apply over the entire operating temperature range of the
+ 5V, (Note 4) I
JA
is the sum of the LM2937 junction-to-case thermal resistance
Output Voltage (V
J
= 25˚C and represent the most likely parametric norm.
OUTmax
5 mA
(V
I
5 mA
(V
I
V
I
10 Hz–100 kHz,
I
1000 Hrs.
I
I
t
V
t
OUT
OUT
OUT
OUT
OUT
OUT
f
r
JA
IN
OUT
<
<
OUT
OUT
is 65˚C/W, for the TO-220 package, 73˚C/W for the TO-263 package, and 174˚C/W for the SOT-223 package. When used
= (V
100 ms, R
1 ms, R
JA
= 5 mA
= 5 mA
= I
= 5 mA
= I
= 50 mA
= 500 mA for the TO-220 and TO-263 packages, I
+ 2V)
+ 2V)
OUT
is the junction-to-ambient thermal resistance. If this dissipation is exceeded, the die temperature will rise above 125˚C
OUTmax
OUTmax
−0.6V, R
I
I
OUT
OUT
OUT
Conditions
)
L
+ 5V),
= 100
V
V
L
I
I
OUTmax
OUTmax
IN
IN
= 100
L
= 100
A
26V,
26V,
= T
J
= 25˚C.
4
JC
12.00
MAX
Typ
360
110
−30
−75
0.5
1.0
of 3˚C/W and the heatsink case-to-ambient thermal resistance. If the TO-263
36
12
10
44
75
2
= (125 − T
12V
A
)/
11.64
11.40
12.36
12.60
Limit
−15
−50
120
120
250
1.0
0.6
10
20
60
26
JA
, where 125 is the maximum junction temperature for op-
OUTmax
15.00
Typ
450
110
−30
−75
0.5
1.0
45
15
10
56
75
=400mA for the SOT-223 pack-
2
15V
Limit
14.55
14.25
15.45
15.75
150
150
250
−15
−50
1.0
0.6
10
20
60
26
mV(Max)
mV(Max)
mA(Max)
mA(Max)
mV(Max)
V (Min)
V(Max)
V(Max)
V(Max)
V(Min)
µVrms
A(Min)
V(Min)
V(Min)
V(Min)
V(Min)
Units
mV