Datasheet

4
LT1129/LT1129-3.3/LT1129-5
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
Quiescent Current
LT1129-3.3
Output Voltage
LT1129
Adjust Pin Voltage
LT1129
Quiescent Current
LT1129-5
Quiescent Current
LT1129-3.3
Quiescent Current
Guaranteed Dropout Voltage
Dropout Voltage
LT1129-5
Output Voltage
OUTPUT CURRENT (A)
DROPOUT VOLTAGE (V)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.2
0.4
0.5
1129 G02
0.1
0.3
0.6
0.7
0
= TEST POINTS
T
J
≤ 125°C
T
J
≤ 25°C
TEMPERATURE (°C)
–50
DROPOUT VOLTAGE (V)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
50
75
1129 G10
–25
25
100
125
A
C
D
E
B
A. I
LOAD
= 700mA
B. I
LOAD
= 500mA
C. I
LOAD
= 300mA
D. I
LOAD
= 100mA
E. I
LOAD
= 10mA

TEMPERATURE (°C)
–50
QUIESCENT CURRENT (µA)
70
60
50
40
30
20
10
0
0
50
75
1129 G11
–25
25
100
125
V
SHDN
= 0V
V
SHDN
= OPEN (HI)
INPUT VOLTAGE (V)
0
QUIESCENT CURRENT (µA)
250
225
200
175
150
125
100
75
50
25
0
8
1129 G13
2
4
6
10
13579
V
SHDN
= 0V
I
LOAD
= 0
R
LOAD
= ∞
V
OUT
= V
ADJ


V
SHDN
= OPEN (HI)
INPUT VOLTAGE (V)
0
QUIESCENT CURRENT (µA)
250
225
200
175
150
125
100
75
50
25
0
8
1129 G14
2
4
6
10
13579
V
SHDN
= 0V
I
LOAD
= 0
R
LOAD
= ∞ 

V
SHDN
= OPEN (HI)
INPUT VOLTAGE (V)
0
QUIESCENT CURRENT (µA)
250
225
200
175
150
125
100
75
50
25
0
8
1129 G12
2
4
6
10
13579
I
LOAD
= 0
R
LOAD
= ∞ 

V
SHDN
= 0V
V
SHDN
= OPEN (HI)
TEMPERATURE (°C)
–50
ADJUST PIN VOLTAGE (V)
3.400
3.375
3.350
3.325
3.300
3.275
3.250
3.225
3.200
0
50
75
1129 G06
–25
25
100
125
I
LOAD
= 1mA
TEMPERATURE (°C)
–50
ADJUST PIN VOLTAGE (V)
3.850
3.825
3.800
3.775
3.750
3.725
3.700
3.675
3.650
0
50
75
1129 G05
–25
25
100
125
I
LOAD
= 1mA
TEMPERATURE (°C)
–50
OUTPUT VOLTAGE (V)
5.100
5.075
5.050
5.025
5.000
4.975
4.950
4.925
4.900

0
50
75
1129 G04
–25
25
100
125
I
LOAD
= 1mA