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