LM317 查看數據表（PDF） - Estek Electronics Co. Ltd
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LM317 Datasheet PDF : 3 Pages
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Absolute Maximum Ratings
OVER OPERATING TEMPERATURE RANGE (UNLESS OTHERWISE NOTED)
Parameter
Maximum
Units
Input-to-output differential voltage, VI - Vo
40
V
Continuous total dissipation at 25 ° C free-air temperature
2
W
Continuous total dissipation at (or below) 25 ° C case temperature
15
W
Operating free-air, case, or virtual junction temperature range
0 to 125 ° C
Storage temperature range
-65 to 150 ° C
Recommended Operating Conditions
Parameter
Output current, I0
Operating virtual junction temperature, TJ
LM 317
min
max
10
1500
0
125
Units
mA
° C
Electrical Characteristics
Electrical Characteristics over recommended ranges of operating virtual junction temperature (unless other wise noted) (Note 1)
Parameter
Test Conditions*
317
Units
Min Typ Max
Input regulation (Note 2)
VI-V0=3 V to 40 V,
(Note 3)
TJ = MIN to MAX
l0 = 10 mA to 1.5 A
0.01 0.04 %/ V
0.02 0.07
Ripple rejection
Vo=10 V, f=120 Hz
65
dB
Vo=10 V, f=120 Hz
10-µF capacitor between ADJ and ground
66 80
Output regulation
Output voltage change with temperature
lo = 10 mA to 1.5 A,
TJ= 25 ° C, (See Note 3)
lo = 10 mA to 1.5 A,
(Note 3)
TJ = MIN to MAX
Vo ≤5 V
Vo > 5 V
Vo ≤ 5 V
Vo > 5 V
5 25 mV
0.1 0.5 %
20 70 mV
0.3 1.5 %
1
%
Output voltage long-term drift (Note 4)
Output noise voltage
Minimum output current to maintain regulation
Peak output current
Adjustment-terminal current
Change in adjustment-terminal current
Reference voltage (output to ADJ )
After 1000 h at TJ = MAX and VI-Vo =40 V
f= 10 Hz to 10 kHz, TJ =25° C
VI-Vo = 40 V
VI-Vo ≤ 15 V
VI-Vo ≤ 40 V, TJ =25° C
VI-Vo=2.5 V to 40 V,
lo = 10 mA to 1.5 A
VI-Vo = 3 V to 40 V, lo=10 mA to 1.5 A,
P ≤ 15W
0.3 1 %
0.003
%
3.5 10 mA
1.5 2.2
A
0.15 0.4
50 100 µA
0.2 5.0 µA
1.2 1.25 1.3 V
BEIJING ESTEK ELECTRONICS CO.,LTD
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