Datasheet

6
LT1083/84/85 Fixed
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
30
40
50
20
10
0
60
70
80
FREQUENCY (Hz)
RIPPLE REJECTION (dB)
10 1k 10k 100k
1083/4/5 FIXED G13
100
V
RIPPLE
≤ 0.5V
P-P
V
RIPPLE
≤ 3V
P-P
(V
IN
– V
OUT
) ≥ 3V
(V
IN
– V
OUT
) ≥ V
DROPOUT
I
OUT
= I
FULL LOAD
LT1083/4/5-12 Ripple Rejection
CASE TEMPERATURE (°C)
50
POWER (W)

100
90
80
70
60
50
40
30
20
10
0
LT1083/4/5 FIXED G15


60 70 80 90 100 110 120 130 140 150
LT1083MK
LT1083CP
LT1083CK
* AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
LT1083 Maximum Power
Dissipation*
OUTPUT CURRENT (0 TO I
FULL LOAD
)
0
RIPPLE REJECTION (dB)
100
90
80
70
60
50
40
30
20
10
0
0.4
0.8
1.0
1083/4/5 FIXED G14
0.2 0.6
f
R
= 120Hz
V
RIPPLE
≤ 3V
P-P
f
R
= 20kHz
V
RIPPLE
≤ 0.5V
P-P
LT1083/4/5-12 Ripple Rejection
vs Current
LT1085 Maximum Power
Dissipation*
CASE TEMPERATURE (°C)
50
POWER (W)

50
40
30
20
10
0
LT1083/4/5 FIXED G17


60 70 80 90 100 110 120 130 140 150
LT1085MK
LT1085CT
LT1085CK
* AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
LT1084 Maximum Power
Dissipation*
CASE TEMPERATURE (°C)
50
POWER (W)

60
50
40
30
20
10
0
LT1083/4/5 FIXED G16


60 70 80 90 100 110 120 130 140 150
LT1084MK
LT1084CT
LT1084CP
* AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
LT1084CK