LT1129CQPBF Просмотр технического описания (PDF) - Linear Technology
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LT1129CQPBF Datasheet PDF : 16 Pages
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LT1129/LT1129-3.3/LT1129-5
TYPICAL PERFORMANCE CHARACTERISTICS
LT1129-3.3
Quiescent Current
250
225
200
ILOAD = 0
RLOAD = ∞
175
150
VSHDN = OPEN (HI)
125
100
75
50
25
VSHDN = 0V
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
112935 G04
LT1129-3.3
Output Voltage
3.400
ILOAD = 1mA
3.375
3.350
3.325
3.300
3.275
3.250
3.225
3.200
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
112935 G07
LT1129-3.3
Ground Pin Current
2.0
1.8
TJ = 25°C
VOUT =
1.6 VSENSE
1.4
RLOAD = 33Ω
ILOAD = 100mA*
1.2
1.0
RLOAD = 66Ω
ILOAD = 50mA*
0.8
0.6
0.4
RLOAD = 330Ω
ILOAD = 10mA*
0.2
*FOR VOUT = 3.3V
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
112935 G10
6
LT1129-5
Quiescent Current
250
225
200
ILOAD = 0
RLOAD = ∞
175
150
VSHDN = OPEN (HI)
125
100
75
50
25
VSHDN = 0V
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
112935 G05
LT1129-5
Output Voltage
5.100
5.075
ILOAD = 1mA
5.050
5.025
5.000
4.975
4.950
4.925
4.900
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
112935 G08
LT1129-5
Ground Pin Current
2.0
1.8
TJ = 25°C
VOUT = VSENSE
1.6
RLOAD = 50Ω
ILOAD = 100mA*
1.4
1.2
RLOAD = 100Ω
1.0
ILOAD = 50mA*
0.8
0.6
RLOAD = 500Ω
0.4
ILOAD = 10mA*
0.2
*FOR VOUT = 5V
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
112935 G11
LT1129
Quiescent Current
250
225
200
ILOAD = 0
RLOAD = ∞
VOUT = VADJ
175
150
VSHDN = OPEN (HI)
125
100
75
50
25
VSHDN = 0V
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
112935 G06
LT1129
Adjust Pin Voltage
3.850
3.825
ILOAD = 1mA
3.800
3.775
3.750
3.725
3.700
3.675
3.650
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
112935 G09
LT1129
Ground Pin Current
2.0
1.8
TJ = 25°C
VOUT =
1.6 VADJ
1.4
RLOAD = 38Ω
ILOAD = 100mA*
1.2
1.0
RLOAD = 75Ω
0.8
ILOAD = 50mA*
0.6
RLOAD = 375Ω
0.4
ILOAD = 10mA*
0.2
*FOR VOUT = 3.75V
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
112935 G12
112935ff
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