Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Junction Temperature (TJ)(Note 3)
Storage Temperature Range
Lead Temperature
150˚C
-65˚C to 150˚C
260˚C, to 10 sec
2000V
ESD Tolerance (Note 4)
Maximum Input to Output Voltage Differential
LM1084-ADJ
LM1084-12
29V
Operating Ratings (Note 1)
Junction Temperature Range (TJ) (Note 3)
18V
27V
LM1084-3.3
Control Section
−40˚C to 125˚C
−40˚C to 150˚C
LM1084-5.0
25V
Output Section
Power Dissipation (Note 2)
Internally Limited
Electrical Characteristics
Typicals and limits appearing in normal type apply for TJ = 25˚C. Limits appearing in Boldface type apply over the entire junc-
tion temperature range for operation.
Min
(Note 6)
Typ
(Note 5)
Max
(Note 6)
Symbol
Parameter
Conditions
Units
VREF
Reference Voltage
LM1084-ADJ
IOUT = 10mA, VIN−VOUT = 3V
10mA ≤IOUT ≤ IFULL LOAD,1.5V ≤ (VIN−VOUT) ≤ 25V
(Note 7)
1.238
1.250
1.262
V
V
1.225
1.250
1.270
VOUT
Output Voltage
(Note 7)
LM1084-3.3
IOUT = 0mA, VIN = 8V
3.270
3.300
3.330
V
V
0 ≤ IOUT ≤IFULL LOAD, 4.8V≤ VIN ≤15V
LM1084-5.0
3.235
3.300
3.365
IOUT = 0mA, VIN = 8V
4.950
5.000
5.050
V
V
0 ≤ IOUT ≤ IFULL LOAD, 6.5V ≤ VIN ≤ 20V
LM1084-12
4.900
5.000
5.100
IOUT = 0mA, VIN = 15V
0 ≤ IOUT ≤ IFULL LOAD, 13.5V ≤ VIN ≤ 25V
LM1084-ADJ
11.880
12.000
12.000
0.015
0.035
0.5
1.0
0.5
1.0
1.0
2.0
0.1
0.2
3
12.120
12.240
0.2
0.2
6
V
11.760
V
∆VOUT
Line Regulation
(Note 8)
%
IOUT =10mA, 1.5V≤ (VIN-VOUT) ≤ 15V
LM1084-3.3
%
mV
mV
mV
mV
mV
mV
%
IOUT = 0mA, 4.8V ≤ VIN ≤ 15V
LM1084-5.0
6
10
IOUT = 0mA, 6.5V ≤ VIN ≤ 20V
LM1084-12
10
25
I
=0mA, 13.5V ≤ VIN ≤ 25V
25
OUT
∆VOUT
Load Regulation
(Note 8)
LM1084-ADJ
0.3
0.4
15
(VIN-V OUT) = 3V, 10mA ≤ IOUT ≤ IFULL LOAD
LM1084-3.3
%
mV
mV
mV
mV
mV
mV
VIN = 5V, 0 ≤ IOUT ≤ IFULL LOAD
LM1084-5.0
7
20
5
20
VIN = 8V, 0 ≤ IOUT ≤ IFULL LOAD
LM1084-12
10
35
12
36
VIN = 15V, 0 ≤ IOUT ≤ IFULL LOAD
LM1084-ADJ, 3.3, 5, 12
∆VREF, ∆VOUT = 1%, IOUT = 5A
24
72
Dropout Voltage
(Note 9)
1.3
1.5
V
3
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