LT1129/LT1129-3.3/LT1129-5
TYPICAL PERFOR A CE CHARACTERISTICS
U W
Guaranteed Dropout Voltage
Quiescent Current
Dropout Voltage
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
70
60
50
40
30
20
10
0
A. I
B. I
C. I
D. I
= 700mA
= 500mA
= 300mA
= 100mA
= 10mA
LOAD
LOAD
LOAD
LOAD
LOAD
A
B
T
≤ 125°C
≤ 25°C
J
V
= OPEN (HI)
SHDN
E. I
T
C
D
J
E
V
= 0V
50
SHDN
= TEST POINTS
0.2 0.3 0.4
0
0.5 0.6 0.7
OUTPUT CURRENT (A)
–50
0
25
50
75 100 125
–50
0
25
75 100 125
0.1
–25
–25
TEMPERATURE (°C)
TEMPERATURE (°C)
1129 G11
1129 G02
1129 G10
LT1129-3.3
Quiescent Current
LT1129-5
Quiescent Current
LT1129
Quiescent Current
250
225
200
175
150
125
100
75
250
225
200
175
150
125
100
75
250
225
200
175
150
125
100
75
I
R
V
= 0
I
= 0
I
= 0
LOAD
LOAD
LOAD
=
∞
R
= ∞
LOAD
R
= ∞
LOAD
LOAD
= V
OUT
ADJ
V
= OPEN (HI)
V
= OPEN (HI)
V
= OPEN (HI)
SHDN
SHDN
SHDN
50
50
50
V
= 0V
V
= 0V
V
= 0V
6
25
SHDN
5
25
SHDN
5
25
SHDN
5
0
0
0
0
1
2
3
4
6
7
8
9
10
0
1
2
3
4
6
7
8
9
10
0
1
2
3
4
7
8
9
10
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
1129 G13
1129 G14
1129 G12
LT1129-3.3
Output Voltage
LT1129-5
Output Voltage
LT1129
Adjust Pin Voltage
3.400
3.375
3.350
3.325
3.300
3.275
3.250
3.225
3.200
5.100
5.075
5.050
5.025
5.000
4.975
4.950
4.925
4.900
3.850
3.825
3.800
3.775
3.750
3.725
3.700
3.675
3.650
I
= 1mA
I
= 1mA
I
= 1mA
LOAD
LOAD
LOAD
–50
0
25
50
75 100 125
–50
0
25
50
75 100 125
–50
0
25
50
75
125
–25
–25
–25
100
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
1129 G06
1129 G04
1129 G05
112935fc
5
Linear Systems [ Linear Systems ]
