LT1129 Linear Technology, LT1129 Datasheet - Page 4

• Manufacturer Part Number: LT1129
• Description: Micropower Low Dropout Regulators with Shutdown
• Manufacturer: Linear Technology

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