Datasheet

5
LT1083/84/85 Fixed
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
LT1084 Dropout Voltage LT1084 Short Circuit Current LT1084 Load Regulation
OUTPUT CURRENT (A)
0
0
MINIMUN INPUT/OUTPUT DIFFERENTIAL (V)
1
1
2
34
LT1083/4/5 FIXEDG04
5
2
6

INDICATES GUARANTEED TEST POINT
–55°C ≤ T
J
≤ 150°C
0°C ≤ T
J
≤ 125°C
T
J
= 150°C
T
J
= –55°C
T
J
= 25°C
INPUT/OUTPUT DIFFERENTIAL (V)
0
0
SHORT-CIRCUIT CURRENT (A)
1
3
4
5
10
7
10
20
25
LT1083/4/5 FIXED G05
2
8
9
6
5
15
30
35
25°C
–55°C
I
FULL LOAD
GUARANTEED
150°C
TEMPERATURE (°C)
–50
–0.20
–0.15
–0.10
–0.05
0.05
0.10
OUTPUT VOLTAGE DEVIATION (%)
0
050
100
150
LT1083/4/5 FIXED G06
–25 25
75
125

∆I = 5A
LT1085 Dropout Voltage
OUTPUT CURRENT (A)
0
0
MINIMUM INPUT/OUTPUT DIFFERENTIAL (V)
1
2
1
2
LT1083/4/5 FIXED G07
3
4

INDICATES GUARANTEED TEST POINT
T
J
= 150°C
T
J
= 25°C
–55°C ≤ T
J
≤ 150°C
T
J
= –55°C
0°C ≤ T
J
≤ 125°C
TEMPERATURE (°C)
–50
–0.20
–0.15
–0.10
–0.05
0.05
0.10
OUTPUT VOLTAGE DEVIATION (%)
0
050
100
150
LT1083/4/5 FIXED G09
–25 25
75
125

∆I = 3A
LT1085 Load Regulation
INPUT/OUTPUT DIFFERENTIAL (V)
0
SHORT-CIRCUIT CURRENT (A)
4
5
6
15 25
LT1083/4/5 FIXED G08
3
2
510
20 30 35
1
0
25°C
150°C
I
FULL LOAD
GUARANTEED
–55°C
LT1085 Short-Circuit Current
LT1083/4/5-5 Ripple Rejection
vs Current
LT1083/4/5-5 Ripple Rejection
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 G11
0.2 0.6
f
R
= 120Hz
V
RIPPLE
≤ 3V
P-P
f
R
= 20kHz
V
RIPPLE
≤ 0.5V
P-P
TEMPERATURE (°C)
–50
OUTPUT VOLTAGE CHANGE (%)
0

1.0
150
LT1183/4/5 FIXED G12

–1.0
–2.0
0
50
100

2.0

–25
25
75
125
Temperature Stability
30
40
50
20
10
0
60
70
80
FREQUENCY (Hz)
RIPPLE REJECTION (dB)
10 1k 10k 100k
1083/4/5 FIXED G10
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