LT1083 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT1083 Datasheet PDF : 18 Pages
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LT1083/LT1084/LT1085
TYPICAL PERFORMANCE CHARACTERISTICS
Minimum Operating Current
10
9
8
7
6
5
TJ = 150°C
4
TJ = 25°C
3
2
1
TJ = –55°C
0
0 5 10 15 20 25 30 35
INPUT/OUTPUT DIFFERENTIAL (V)
LT1083/4/5 ADJ G10
LT1083
Ripple Rejection
100
VRIPPLE ≤ 3VP-P
VRIPPLE
90
≤ 0.5VP-P
80
(VIN – VOUT) ≥ 3V
70
60
(VIN – VOUT) ≥ VDROPOUT
50
40
30
20 CADJ = 200μF AT FREQUENCIES < 60Hz
10
CADJ = 25μF AT FREQUENCIES > 60Hz
IOUT = 7A
0
10
100
1k
10k
FREQUENCY (Hz)
100k
1083/4/5 ADJ G13
LT1084
Ripple Rejection
100
90
VRIPPLE ≤ 3VP-P VRIPPLE ≤ 0.5VP-P
80
(VIN – VOUT) ≥ 3V
70
60
50 (VIN – VOUT) ≥ VDROPOUT
40
30
20 CADJ = 200μF AT FREQUENCIES < 60Hz
10
CADJ = 25μF AT FREQUENCIES > 60Hz
IOUT = 5A
0
10
100
1k
10k
FREQUENCY (Hz)
100k
1083/4/5 ADJ G16
Temperature Stability
1.27
1.26
1.25
1.24
1.23
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
LT1083/4/5 ADJ G11
LT1083
Ripple Rejection vs Current
100
90
fR = 120Hz
VRIPPLE ≤ 3VP-P
80
70 fR = 20kHz
VRIPPLE ≤ 0.5VP-P
60
50
40
30
20 VOUT = 5V
10
CADJ = 25μF
COUT = 25μF
0
01 2 34 56 7 8
OUTPUT CURRENT (A)
1083/4/5 ADJ G14
LT1084
Ripple Rejection vs Current
100
90
fR = 120Hz
VRIPPLE ≤ 3VP-P
80
70 fR = 20kHz
VRIPPLE ≤ 0.5VP-P
60
50
40
30
20 VOUT = 5V
10
CADJ = 25μF
COUT = 25μF
0
0
1
2
3
4
5
OUTPUT CURRENT (A)
1083/4/5 ADJ G17
Adjust Pin Current
100
90
80
70
60
50
40
30
20
10
0
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
LT1083/4/5 ADJ G12
LT1083
Maximum Power Dissipation*
100
90
80
70
LT1083MK
60
50
40
30
LT1083CP
20
10
LT1083CK
0
50 60 70 80 90 100 110 120 130 140 150
CASE TEMPERATURE (°C)
* AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
LT1083/4/5 ADJ G15
LT1084
Maximum Power Dissipation*
60
50
LT1084MK
40
30
LT1084CT
20
LT1084CP
10
LT1084CK
0
50 60 70 80 90 100 110 120 130 140 150
CASE TEMPERATURE (°C)
* AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
LT1083/4/5 ADJ G18
108345fg
7
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