5
LT1083/LT1084/LT1085
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
Minimum Operating Current
Temperature Stability
Adjust Pin Current
INPUT/OUTPUT DIFFERENTIAL (V)
0
0
M
1
3
4
5
10
7
10
20
25
LT1083/4/5 ADJ G10
2
8
9
6
5
15
30
35
T
J
= –55°C
T
J
= 150°C
T
J
= 25°C
TEMPERATURE (°C)
–50
1.27
1.26
1.25
1.24
1.23
R
0
50
100
150
LT1083/4/5 ADJ G11
–25
25
75
125
TEMPERATURE (°C)
–50
100
90
80
70
60
50
40
30
20
10
0
A
μ
A
0
50
100
150
LT1083/4/5 ADJ G12
–25
25
75
125
FREQUENCY (Hz)
R
100
90
80
70
60
50
40
30
20
10
0
10
1k
10k
100k
1083/4/5 ADJ G13
100
V
≤
0.5V
P-P
V
RIPPLE
≤
3V
P-P
(V
IN
– V
OUT
)
≥
3V
(V
IN
– V
OUT
)
≥
V
DROPOUT
C
ADJ
= 200
μ
F AT FREQUENCIES < 60Hz
C
ADJ
= 25
μ
F AT FREQUENCIES > 60Hz
I
OUT
= 7A
OUTPUT CURRENT (A)
0
R
100
90
80
70
60
50
40
30
20
10
0
2
4
5
1083/4/5 ADJ G14
1
3
6
7
8
V
OUT
= 5V
C
ADJ
= 25
μ
F
C
OUT
= 25
μ
F
f
R
= 120Hz
V
RIPPLE
≤
3V
P-P
f
R
= 20kHz
V
RIPPLE
≤
0.5V
P-P
CASE TEMPERATURE (°C)
50
P
100
90
80
70
60
50
40
30
20
10
0
60 70 80 90 100 110 120 130 140 150
LT1083MK
LT1083CP
LT1083CK
* AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
LT1083
Ripple Rejection
LT1083
Ripple Rejection vs Current
LT1083
Maximum Power Dissipation*
LT1084
Ripple Rejection
LT1084
Ripple Rejection vs Current
LT1084
Maximum Power Dissipation*
FREQUENCY (Hz)
R
100
90
80
70
60
50
40
30
20
10
0
10
1k
10k
100k
1083/4/5 ADJ G16
100
V
RIPPLE
≤
0.5V
P-P
V
RIPPLE
≤
3V
P-P
(V
IN
– V
OUT
)
≥
3V
(V
IN
– V
OUT
)
≥
V
DROPOUT
C
ADJ
= 200
μ
F AT FREQUENCIES < 60Hz
C
ADJ
= 25
μ
F AT FREQUENCIES > 60Hz
I
OUT
= 5A
OUTPUT CURRENT (A)
0
R
100
90
80
70
60
50
40
30
20
10
0
2
4
5
1083/4/5 ADJ G17
1
3
V
OUT
= 5V
C
ADJ
= 25
μ
F
C
OUT
= 25
μ
F
f
R
= 120Hz
V
RIPPLE
≤
3V
P-P
f
R
= 20kHz
V
RIPPLE
≤
0.5V
P-P
CASE TEMPERATURE (°C)
50
P
60
50
40
30
20
10
0
60 70 80 90 100 110 120 130 140 150
LT1084MK
LT1084CT
LT1084CP
* AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
LT1084CK