LT1085 LINER [Linear Technology], LT1085 Datasheet - Page 5

• Manufacturer Part Number: LT1085
• Description: 7.5A, 5A, 3A Low Dropout Positive Adjustable Regulators
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFORMANCE CHARACTERISTICS
100
100
10
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
0
1
0
0
10
10
Minimum Operating Current
0
LT1083
Ripple Rejection
LT1084
Ripple Rejection
C
C
I
C
C
I
(V
OUT
(V
OUT
ADJ
ADJ
ADJ
ADJ
IN
IN
5
T
INPUT/OUTPUT DIFFERENTIAL (V)
= 7A
= 5A
– V
= 200µF AT FREQUENCIES < 60Hz
= 25µF AT FREQUENCIES > 60Hz
– V
= 200µF AT FREQUENCIES < 60Hz
= 25µF AT FREQUENCIES > 60Hz
J
V
= 25°C
RIPPLE
100
V
100
OUT
OUT
RIPPLE
T
10
J
) ≥ V
) ≥ V
= –55°C
FREQUENCY (Hz)
FREQUENCY (Hz)
≤ 3V
≤ 3V
15
DROPOUT
DROPOUT
P-P
1k
1k
P-P
T
J
20
= 150°C
(V
(V
IN
V
IN
RIPPLE
– V
– V
25
V
≤ 0.5V
10k
10k
OUT
OUT
LT1083/4/5 ADJ G10
RIPPLE
W
1083/4/5 ADJ G13
≤ 0.5V
1083/4/5 ADJ G16
) ≥ 3V
) ≥ 3V
30
P-P
P-P
100k
100k
U
35
1.27
1.26
1.25
1.24
1.23
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
–50
Temperature Stability
LT1083
Ripple Rejection vs Current
LT1084
Ripple Rejection vs Current
0
0
f
V
f
V
V
C
C
V
C
C
R
R
–25
RIPPLE
OUT
ADJ
OUT
RIPPLE
OUT
ADJ
OUT
= 20kHz
= 20kHz
1
= 25µF
= 25µF
= 5V
= 25µF
= 5V
= 25µF
1
≤ 0.5V
0
2
≤ 0.5V
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
TEMPERATURE (°C)
25
P-P
3
P-P
2
50
4
f
V
f
V
R
R
RIPPLE
RIPPLE
= 120Hz
75
= 120Hz
3
5
100
≤ 3V
≤ 3V
6
LT1083/4/5 ADJ G11
1083/4/5 ADJ G14
1083/4/5 ADJ G17
4
P-P
P-P
125
7
150
8
5
LT1083/LT1084/LT1085
* AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
* AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
60
50
40
30
20
10
0
0
0
–50
50
50
Adjust Pin Current
LT1083
Maximum Power Dissipation*
LT1084
Maximum Power Dissipation*
LT1084CT
60 70 80 90 100 110 120 130 140 150
60 70 80 90 100 110 120 130 140 150
–25
CASE TEMPERATURE (°C)
CASE TEMPERATURE (°C)
0
TEMPERATURE (°C)
LT1083MK
25
LT1084CK
LT1083CK
50
LT1084MK
LT1083CP
75
LT1084CP
100
LT1083/4/5 ADJ G12
LT1083/4/5 ADJ G15
LT1083/4/5 ADJ G18
125
108345fe
5
150