LM337IMP National Semiconductor, LM337IMP Datasheet - Page 2

• Manufacturer Part Number: LM337IMP
• Description: IC, NEG ADJ REG, -1.2V TO -37V, SOT223-3
• Manufacturer: National Semiconductor

Specifications of LM337IMP

• Primary Input Voltage: 40V
• Output Voltage Adjustable Range: -1.2V To -37V
• Dropout Voltage Vdo: 1.9V
• No. Of Outputs: 1
• No. Of Pins: 3
• Output Current: 1A
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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Line Regulation
Load Regulation
Thermal Regulation
Adjustment Pin Current
Adjustment Pin Current Charge
Reference Voltage
Line Regulation
Load Regulation
Temperature Stability
Minimum Load Current
Current Limit
RMS Output Noise, % of V
Ripple Rejection Ratio
Long-Term Stability
Thermal Resistance, Junction to
Case
Thermal Resistance, Junction to
Ambient (No Heat Sink)
Absolute Maximum Ratings
4)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
Note 1: Unless otherwise specified, these specifications apply −55˚C ≤ T
= 0.1A for the TO-39 package and I
are applicable for power dissipations of 2W for the TO-39 and SOT-223 (see Application Hints), and 20W for the TO-3, and TO-220. I
SOT-223 and TO-220 packages, and 0.2A for the TO-39 package.
Note 2: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are
covered under the specification for thermal regulation. Load regulation is measured on the output pin at a point
Note 3: Selected devices with tightened tolerance reference voltage available.
Power Dissipation
Input-Output Voltage Differential
Operating Junction Temperature
Range
LM137
Parameter
OUT
OUT
= 0.5A for the TO-3, SOT-223 and TO-220 packages. Although power dissipation is internally limited, these specifications
T
(Note 2) I
T
T
10 mA ≤ I
3.0V ≤ |V
T
T
3V ≤ |V
10 mA ≤ I
3V ≤ |V
10 mA ≤ I
T
|V
|V
|V
K, MP and T Package
H Package
|V
K, MP and T Package
H Package
T
V
C
T
H Package
K Package
T Package
H Package
K Package
T Package
MP Package
j
j
j
A
j
MIN
j
j
OUT
ADJ
IN
IN
IN
IN
= 25˚C, 3V ≤ |V
= 25˚C, 10 mA ≤ I
= 25˚C, 10 ms Pulse
= 25˚C (Note 3)
= 25˚C, 10 Hz ≤ f ≤ 10 kHz
= 125˚C, 1000 Hours
= 25˚C
− V
− V
− V
− V
≤ T
= 10 µF
= −10V, f = 120 Hz
IN
IN
OUT
OUT
OUT
OUT
Internally Limited
−55˚C to +150˚C
j
IN
L
(Note 1)
≤ T
L
− V
OUT
− V
OUT
= 10 mA
≤ I
− V
| ≤ 40V
| ≤ 10V
| ≤ 15V
| = 40V, T
Conditions
MAX
OUT
OUT
(Notes 1,
MAX
≤ I
≤ I
OUT
MAX
MAX
| ≤ 40V, (Note 3)
| ≤ 40V, (Note 2)
IN
| ≤ 40V,
OUT
, P ≤ P
, (Note 2)
− V
40V
j
= 25˚C
OUT
j
≤ I
≤ +150˚C for the LM137, 0˚C ≤ T
MAX
MAX
| ≤ 40V
2
Storage Temperature
Lead Temperature (Soldering, 10 sec.)
Plastic Package (Soldering, 4 sec.)
ESD Rating
LM337
LM337I
−1.225 −1.250 −1.275 −1.213 −1.250 −1.287
−1.200 −1.250 −1.300 −1.200 −1.250 −1.300
0.24
0.15
Min
1.5
0.5
66
LM137
0.002
0.003
0.01
0.02
0.17
Typ
140
0.3
0.3
0.6
2.5
1.2
2.2
0.8
0.4
0.3
2.3
65
60
77
12
35
2
j
≤ +125˚C for the LM337; V
1
⁄
8
" below the base of the TO-3 and TO-39 packages.
Max
0.02
0.02
0.05
100
0.5
3.5
1.8
15
5
1
5
3
1
3
0.15
0.10
Min
1.5
0.5
66
LM337
0.003
0.003
IN
MAX
0.01
0.02
0.17
Typ
140
170
0.3
0.3
0.6
2.5
1.5
2.2
0.8
0.4
0.3
2.3
65
60
77
12
35
50
2
4
− V
−40˚C to +125˚C
−65˚C to +150˚C
is 1.5A for the TO-3,
OUT
0˚C to +125˚C
= 5V; and I
0.04
0.04
0.07
Max
100
1.0
1.5
3.7
1.9
10
15
5
6
1
3
2k Volts
300˚C
260˚C
Units
˚C/W
˚C/W
˚C/W
˚C/W
˚C/W
˚C/W
˚C/W
%/W
%/V
%/V
OUT
mA
mA
µA
µA
dB
dB
%
%
%
%
%
V
V
A
A
A
A