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Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Maximum Input to Output Voltage Differential
LM1085-ADJ
LM1085-12
LM1085-3.3
LM1085-5.0
Power Dissipation (Note 2)
Electrical Characteristics
Typicals and limits appearing in normal type apply for T
tion temperature range for operation.
Symbol
Parameter
V
Reference Voltage
REF
V
Output Voltage
OUT
(Note 7)
∆V
Line Regulation
OUT
(Note 8)
∆V
Load Regulation
OUT
(Note 8)
Dropout Voltage
(Note 9)
(Note 1)
29V
18V
27V
25V
Internally Limited
= 25˚C. Limits appearing in Boldface type apply over the entire junc-
J
Conditions
LM1085-ADJ
I
= 10mA, V
−V
= 3V
OUT
IN
OUT
10mA ≤I
≤ I
,1.5V ≤ (V
OUT
FULL LOAD
(Note 7)
LM1085-3.3
I
= 0mA, V
= 5V
OUT
IN
0 ≤ I
≤I
, 4.8V≤ V
OUT
FULL LOAD
LM1085-5.0
I
= 0mA, V
= 8V
OUT
IN
0 ≤ I
≤ I
, 6.5V ≤ V
OUT
FULL LOAD
LM1085-12
I
= 0mA, V
= 15V
OUT
IN
0 ≤ I
≤ I
, 13.5V ≤ V
OUT
FULL LOAD
LM1085-ADJ
I
=10mA, 1.5V≤ (V
-V
OUT
IN
OUT
LM1085-3.3
= 0mA, 4.8V ≤ V
≤ 15V
I
OUT
IN
LM1085-5.0
= 0mA, 6.5V ≤ V
≤ 20V
I
OUT
IN
LM1085-12
=0mA, 13.5V ≤ V
≤ 25V
I
OUT
IN
LM1085-ADJ
) = 3V, 10mA ≤ I
(V
-V
IN
OUT
OUT
LM1085-3.3
= 5V, 0 ≤ I
≤ I
V
IN
OUT
FULL LOAD
LM1085-5.0
= 8V, 0 ≤ I
≤ I
V
IN
OUT
FULL LOAD
LM1085-12
= 15V, 0 ≤ I
≤ I
V
IN
OUT
FULL LOAD
LM1085-ADJ, 3.3, 5, 12
∆V
, ∆V
= 1%, I
= 3A
REF
OUT
OUT
Junction Temperature (T
Storage Temperature Range
Lead Temperature
ESD Tolerance (Note 4)
Operating Ratings
Junction Temperature Range (T
Control Section
Output Section
Min
(Note 6)
1.238
) ≤ 15V
−V
1.225
IN
OUT
3.270
3.235
≤15V
IN
4.950
4.900
≤ 20V
IN
11.880
11.760
≤ 25V
IN
) ≤ 15V
≤ I
FULL LOAD
3
)(Note 3)
150˚C
J
-65˚C to 150˚C
260˚C, to 10 sec
2000V
(Note 1)
) (Note 3)
J
−40˚C to 125˚C
−40˚C to 150˚C
Typ
Max
(Note 5)
(Note 6)
1.250
1.262
1.250
1.270
3.300
3.330
3.300
3.365
5.000
5.050
5.000
5.100
12.000
12.120
12.000
12.240
0.015
0.2
0.035
0.2
0.5
6
1.0
6
0.5
10
1.0
10
1.0
25
2.0
25
0.1
0.3
0.2
0.4
3
15
7
20
5
20
10
35
12
36
24
72
1.3
1.5
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Units
V
V
V
V
V
V
V
V
%
%
mV
mV
mV
mV
mV
mV
%
%
mV
mV
mV
mV
mV
mV
V
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