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LM337LM 数据表(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
部件名 LM337LM
功能描述  3-Terminal Adjustable Regulator
Download  5 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LM337LM 数据表(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.
Power Dissipation
Internally Limited
Input–Output Voltage Differential
40V
Operating Junction
Temperature Range
−25˚C to +125˚C
Storage Temperature
−55˚C to +150˚C
Lead Temperature
(Soldering, 10 sec.)
300˚C
Plastic Package (Soldering 4 sec.)
260˚C
ESD rating to be determined.
Electrical Characteristics (Note 2)
Parameter
Conditions
Min
Typ
Max
Units
Line Regulation
T
A = 25˚C, 3V ≤ |VIN −VOUT| ≤ 40V,
0.01
0.04
%/V
(Note 3)
Load Regulation
T
A = 25˚C, 5 mA ≤ IOUT ≤ IMAX, (Note 3)
0.1
0.5
%
Thermal Regulation
T
A = 25˚C, 10 ms Pulse
0.04
0.2
%/W
Adjustment Pin Current
50
100
µA
Adjustment Pin Current Change
5 mA
≤ I
L ≤ 100 mA
0.2
5
µA
3V
≤ |V
IN −VOUT| ≤ 40V
Reference Voltage
3V
≤ |V
IN −VOUT| ≤ 40V, (Note 4)
1.20
1.25
1.30
V
10 mA
≤ I
OUT ≤ 100 mA, P ≤ 625 mW
Line Regulation
3V
≤ |V
IN −VOUT| ≤ 40V, (Note 3)
0.02
0.07
%/V
Load Regulation
5 mA
≤ I
OUT ≤ 100 mA, (Note 3)
0.3
1.5
%
Temperature Stability
T
MIN ≤ Tj ≤ TMAX
0.65
%
Minimum Load Current
|V
IN −VOUT| ≤ 40V
3.5
5
mA
3V
≤ |V
IN −VOUT| ≤ 15V
2.2
3.5
mA
Current Limit
3V
≤ |V
IN −VOUT| ≤ 13V
100
200
320
mA
|V
IN −VOUT| = 40V
25
50
120
mA
Rms Output Noise, % of V
OUT
T
A = 25˚C, 10 Hz ≤ f ≤ 10 kHz
0.003
%
Ripple Rejection Ratio
V
OUT = −10V, F = 120 Hz, CADJ = 065
dB
C
ADJ = 10 µF
66
80
dB
Long-Term Stability
T
A = 125˚C
0.3
1
%
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits.
Note 2: Unless otherwise specified, these specifications apply −25˚C
≤ Tj ≤ + 125˚C for the LM337L; |VIN −VOUT| = 5V and IOUT = 40 mA. Although power dissi-
pation is internally limited, these specifications are applicable for power dissipations up to 625 mW. IMAX is 100 mA.
Note 3: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are cov-
ered under the specification for thermal regulation.
Note 4: Thermal resistance of the TO-92 package is 180˚C/W junction to ambient with 0.4" leads from a PC board and 160˚C/W junction to ambient with 0.125" lead
length to PC board. The M package
θJA is 180˚C/W in still air.
www.national.com
2


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