National Instruments LM1085 Series 用户手册
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Maximum Input to Output Voltage Differential
LM1085-ADJ
29V
LM1085-12
18V
LM1085-3.3
27V
LM1085-5.0
25V
Power Dissipation (Note 2)
Internally Limited
Junction Temperature (T
J
150˚C
Storage Temperature Range
-65˚C to 150˚C
Lead Temperature
260˚C, to 10 sec
ESD Tolerance (Note 4)
2000V
Operating Ratings
Junction Temperature Range (T
J
) (Note 3)
Control Section
−40˚C to 125˚C
Output Section
−40˚C to 150˚C
Electrical Characteristics
Typicals and limits appearing in normal type apply for T
J
= 25˚C. Limits appearing in Boldface type apply over the entire junc-
tion temperature range for operation.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
REF
Reference Voltage
LM1085-ADJ
I
OUT
= 10mA, V
IN
−V
OUT
= 3V
10mA
≤I
OUT
≤ I
FULL LOAD
,1.5V
≤ (V
IN
−V
OUT
)
≤ 15V
1.238
1.225
1.250
1.250
1.262
1.270
V
V
V
OUT
Output Voltage
LM1085-3.3
I
OUT
= 0mA, V
IN
= 5V
0
≤ I
OUT
≤I
FULL LOAD
, 4.8V
≤ V
IN
≤15V
3.270
3.235
3.300
3.300
3.330
3.365
V
V
LM1085-5.0
I
OUT
= 0mA, V
IN
= 8V
0
≤ I
OUT
≤ I
FULL LOAD
, 6.5V
≤ V
IN
≤ 20V
4.950
4.900
5.000
5.000
5.050
5.100
V
V
LM1085-12
I
OUT
= 0mA, V
IN
= 15V
0
≤ I
OUT
≤ I
FULL LOAD
, 13.5V
≤ V
IN
≤ 25V
11.880
11.760
12.000
12.000
12.120
12.240
V
V
∆V
OUT
Line Regulation
LM1085-ADJ
I
OUT
=10mA, 1.5V
≤ (V
IN
-V
OUT
)
≤ 15V
0.015
0.035
0.2
0.2
%
%
LM1085-3.3
I
OUT
= 0mA, 4.8V
≤ V
IN
≤ 15V
0.5
1.0
6
6
mV
mV
LM1085-5.0
I
OUT
= 0mA, 6.5V
≤ V
IN
≤ 20V
0.5
1.0
10
10
mV
mV
LM1085-12
I
OUT
=0mA, 13.5V
≤ V
IN
≤ 25V
1.0
2.0
25
25
mV
mV
∆V
OUT
Load Regulation
LM1085-ADJ
(V
IN
-V
OUT
) = 3V, 10mA
≤ I
OUT
≤ I
FULL LOAD
0.1
0.2
0.3
0.4
%
%
LM1085-3.3
V
IN
= 5V, 0
≤ I
OUT
≤ I
FULL LOAD
3
7
15
20
mV
mV
LM1085-5.0
V
IN
= 8V, 0
≤ I
OUT
≤ I
FULL LOAD
5
10
20
35
mV
mV
LM1085-12
V
IN
= 15V, 0
≤ I
OUT
≤ I
FULL LOAD
12
24
36
72
mV
mV
Dropout Voltage
LM1085-ADJ, 3.3, 5, 12
∆V
∆V
REF
,
∆V
OUT
= 1%, I
OUT
= 3A
1.3
1.5
V
LM1085
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