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參數資料
| 型號： | LM337L |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 3-Terminal Adjustable Regulator |
| 中文描述： | 三端可調穩壓器 |
| 文件頁數： | 2/5頁 |
| 文件大小： | 89K |
| 代理商： | LM337L |
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
Input–Output Voltage Differential
Operating Junction
Temperature Range
Internally Limited
40V
25C to +125C
Storage Temperature
Lead Temperature
(Soldering, 10 sec.)
Plastic Package (Soldering 4 sec.)
ESD rating to be determined.
55C to +150C
300C
260C
Electrical Characteristics
(Note 2)
Parameter
Conditions
Min
Typ
0.01
Max
0.04
Units
%/V
Line Regulation
T
A
= 25C, 3V
≤
|V
IN
V
OUT
|
≤
40V,
(Note 3)
T
A
= 25C, 5 mA
≤
I
OUT
≤
I
MAX
, (Note 3)
T
A
= 25C, 10 ms Pulse
Load Regulation
Thermal Regulation
Adjustment Pin Current
Adjustment Pin Current Change
0.1
0.04
50
0.2
0.5
0.2
100
5
%
%/W
μA
μA
5 mA
≤
I
L
≤
100 mA
3V
≤
|V
IN
V
OUT
|
≤
40V
3V
≤
|V
IN
V
OUT
|
≤
40V, (Note 4)
10 mA
≤
I
OUT
≤
100 mA, P
≤
625 mW
3V
≤
|V
IN
V
OUT
|
≤
40V, (Note 3)
5 mA
≤
I
OUT
≤
100 mA, (Note 3)
T
MIN
≤
T
j
≤
T
MAX
|V
IN
V
OUT
|
≤
40V
3V
≤
|V
IN
V
OUT
|
≤
15V
3V
≤
|V
IN
V
OUT
|
≤
13V
|V
IN
V
OUT
| = 40V
T
A
= 25C, 10 Hz
≤
f
≤
10 kHz
V
OUT
= 10V, F = 120 Hz, C
ADJ
= 0
C
ADJ
= 10 μF
T
A
= 125C
Reference Voltage
1.20
1.25
1.30
V
Line Regulation
Load Regulation
Temperature Stability
Minimum Load Current
0.02
0.3
0.65
3.5
2.2
200
50
0.003
65
80
0.3
0.07
1.5
%/V
%
%
mA
mA
mA
mA
%
dB
dB
%
5
3.5
320
120
Current Limit
100
25
Rms Output Noise, % of V
OUT
Ripple Rejection Ratio
66
Long-Term Stability
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 25C
≤
T
≤
+ 125C for the LM337L; |V
IN
V
| = 5V and I
OUT
= 40 mA. Although power dissi-
pation is internally limited, these specifications are applicable for power dissipations up to 625 mW. I
MAX
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 180C/W junction to ambient with 0.4" leads from a PC board and 160C/W junction to ambient with 0.125" lead
length to PC board. The M package
θ
JA
is 180C/W in still air.
www.national.com
2
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