LT1129/LT1129-3.3/LT1129-5
TYPICAL PERFORMANCE CHARACTERISTICS
LT1129-3.3
Quiescent Current
250
225
QUIESCENT CURRENT (μA)
LT1129-5
Quiescent Current
250
I
LOAD
= 0
R
LOAD
=
∞
QUIESCENT CURRENT (μA)
LT1129
Quiescent Current
250
I
LOAD
= 0
R
LOAD
=
∞
QUIESCENT CURRENT (μA)
225
200
175
150
125
100
75
50
25
0
V
SHDN
= 0V
0
1
2
3 4 5 6 7
INPUT VOLTAGE (V)
225
200
175
150
125
100
75
50
25
V
SHDN
= 0V
0
1
2
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)
I
LOAD
= 0
R
LOAD
=
∞
V
OUT
= V
ADJ
V
SHDN
= OPEN (HI)
V
SHDN
= OPEN (HI)
8
9
10
0
3 4 5 6 7
INPUT VOLTAGE (V)
8
9
10
112935 G04
112935 G05
112935 G06
LT1129-3.3
Output Voltage
3.400
3.375
I
LOAD
= 1mA
5.100
5.075
LT1129-5
Output Voltage
3.850
I
LOAD
= 1mA
3.825
LT1129
Adjust Pin Voltage
I
LOAD
= 1mA
ADJUST PIN VOLTAGE (V)
3.325
3.300
3.275
3.250
3.225
3.200
–50
–25
50
25
0
75
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
25
0
75
TEMPERATURE (°C)
100
125
ADJUST PIN VOLTAGE (V)
3.800
3.775
3.750
3.725
3.700
3.675
3.650
–50
–25
50
25
0
75
TEMPERATURE (°C)
100
125
112935 G07
112935 G08
112935 G09
LT1129-3.3
Ground Pin Current
2.0
1.8
GROUND PIN CURRENT (mA)
LT1129-5
Ground Pin Current
2.0
2.0
T
J
= 25°C
V
OUT
= V
SENSE
R
LOAD
= 50Ω
I
LOAD
= 100mA*
1.8
GROUND PIN CURRENT (mA)
LT1129
Ground Pin Current
T
J
= 25°C
V
OUT
=
V
ADJ
GROUND PIN CURRENT (mA)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
T
J
= 25°C
V
OUT
=
V
SENSE
1.8
R
LOAD
= 33Ω
I
LOAD
= 100mA*
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
*FOR V
OUT
= 3.3V
0
8
9
10
0
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
R
LOAD
= 38Ω
I
LOAD
= 100mA*
R
LOAD
= 66Ω
I
LOAD
= 50mA*
R
LOAD
= 100Ω
I
LOAD
= 50mA*
R
LOAD
= 75Ω
I
LOAD
= 50mA*
R
LOAD
= 330Ω
I
LOAD
= 10mA*
R
LOAD
= 500Ω
I
LOAD
= 10mA*
*FOR V
OUT
= 5V
1
2
3 4 5 6 7
INPUT VOLTAGE (V)
8
9
10
R
LOAD
= 375Ω
I
LOAD
= 10mA*
*FOR V
OUT
= 3.75V
0
1
2
3 4 5 6 7
INPUT VOLTAGE (V)
8
9
10
0
1
2
3 4 5 6 7
INPUT VOLTAGE (V)
112935 G10
112935 G11
112935 G12
112935ff
6
LINER [ LINEAR TECHNOLOGY ]
