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LM337LMX 数据表(PDF) 3 Page - Texas Instruments

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部件名 LM337LMX
功能描述  LM337L 3-Terminal Adjustable Regulator
Download  13 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LM337LMX 数据表(HTML) 3 Page - Texas Instruments

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LM337L
www.ti.com
SNVS780D – MAY 1998 – REVISED MAY 2013
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1) (2)
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
1.5kV(3)
(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 ensure specific performance limits.
(2)
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3)
Human body model, 1.5k
Ω in series with 100pF.
Electrical Characteristics
(1)
Parameter
Conditions
Min
Typ
Max
Units
Line Regulation
TA = 25°C, 3V ≤ |VIN − VOUT| ≤ 40V
(2)
0.01
0.04
%/V
Load Regulation
TA = 25°C, 5mA ≤ IOUT ≤ IMAX
(2)
0.1
0.5
%
Thermal Regulation
TA = 25°C, 10ms Pulse
0.04
0.2
%/W
Adjustment Pin Current
50
100
μA
Adjustment Pin Current Change
5mA
≤ IL ≤ 100mA
0.2
5
μA
3V
≤ |VIN − VOUT| ≤ 40V
Reference Voltage
3V
≤ |VIN − VOUT| ≤ 40V
(3)
1.20
1.25
1.30
V
10mA
≤ IOUT ≤ 100mA, P ≤ 625mW
Line Regulation
3V
≤ |VIN − VOUT| ≤ 40V
(2)
0.02
0.07
%/V
Load Regulation
5mA
≤ IOUT ≤ 100mA
(2)
0.3
1.5
%
Temperature Stability
TMIN ≤ Tj ≤ TMAX
0.65
%
Minimum Load Current
|VIN − VOUT| ≤ 40V
3.5
5
mA
3V
≤ |VIN − VOUT| ≤ 15V
2.2
3.5
mA
Current Limit
3V
≤ |VIN − VOUT| ≤ 13V
100
200
320
mA
|VIN − VOUT| = 40V
25
50
120
mA
Rms Output Noise, % of VOUT
TA = 25°C, 10Hz ≤ f ≤ 10kHz
0.003
%
Ripple Rejection Ratio
VOUT = −10V, F = 120 Hz, CADJ = 0
65
dB
CADJ = 10μF
66
80
dB
Long-Term Stability
TA = 125°C
0.3
1
%
(1)
Unless otherwise specified, these specifications apply
−25°C ≤ TJ ≤ + 125°C for the LM337L; |VIN − VOUT| = 5V and IOUT = 40mA.
Although power dissipation is internally limited, these specifications are applicable for power dissipations up to 625 mW. IMAX is 100mA.
(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.
(3)
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 SOIC package θJA is 180°C/W in still air. The 6-Bump DSBGA package θJA is
290°C/W in still air.
Copyright © 1998–2013, Texas Instruments Incorporated
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