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LD39050 数据表(PDF) 13 Page - STMicroelectronics

部件名 LD39050
功能描述  500 mA low quiescent current and low noise voltage regulator
PDF  28 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LD39050 数据表(HTML) 13 Page - STMicroelectronics

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LD39050
Typical performance characteristics
28
Figure 17. Line regulation (VOUT = 2.5 V)
Figure 18. Supply voltage rejection vs.
temperature (VOUT = 0.8 V, f = 1 kHz)
Figure 19. Supply voltage rejection vs.
temperature (VOUT = 0.8 V, f = 10 kHz)
Figure 20. Supply voltage rejection vs.
temperature (VOUT = 2.5 V, f = 1 kHz)
-0.04
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
0.04
-50
-25
0
25
50
75
100
125
150
T [°C]
I
OUT = 1 mA
I
OUT = 100 mA
V
IN = from 3.5 V to 5.5 V VOUT = 2.5 V VEN = VIN
-0.04
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
0.04
-50
-25
0
25
50
75
100
125
150
T [°C]
I
OUT = 1 mA
I
OUT = 100 mA
V
IN = from 3.5 V to 5.5 V VOUT = 2.5 V VEN = VIN
0
10
20
30
40
50
60
70
80
90
100
-50
-25
0
25
50
75
100
125
150
T [°C]
C
IN = COUT = 1 µF
V
IN from 1.7 V to 1.9 V, VOUT = 0.8 V, VEN to VIN, IOUT = 10 mA, freq. = 1 kHz
0
10
20
30
40
50
60
70
80
90
100
-50
-25
0
25
50
75
100
125
150
T [°C]
C
IN = COUT = 1 µF
V
IN from 1.7 V to 1.9 V, VOUT = 0.8 V, VEN to VIN, IOUT = 10 mA, freq. = 1 kHz
0
10
20
30
40
50
60
70
80
90
100
-50
-25
0
25
50
75
100
125
150
T [°C]
C
IN = COUT = 1 µF
V
IN from 1.7 V to 1.9 V, VOUT = 0.8 V, VEN to VIN, IOUT = 100 mA, freq. = 10 kHz
0
10
20
30
40
50
60
70
80
90
100
-50
-25
0
25
50
75
100
125
150
T [°C]
C
IN = COUT = 1 µF
V
IN from 1.7 V to 1.9 V, VOUT = 0.8 V, VEN to VIN, IOUT = 100 mA, freq. = 10 kHz
0
10
20
30
40
50
60
70
80
90
100
-50
-25
0
25
50
75
100
125
150
T [°C]
C
IN = COUT = 1 µF
V
IN from 2.9 V to 3.1 V, VOUT = 2.5 V, VEN to VIN, IOUT = 10 mA, freq. = 1 kHz
0
10
20
30
40
50
60
70
80
90
100
-50
-25
0
25
50
75
100
125
150
T [°C]
C
IN = COUT = 1 µF
V
IN from 2.9 V to 3.1 V, VOUT = 2.5 V, VEN to VIN, IOUT = 10 mA, freq. = 1 kHz
Figure 21. Supply voltage rejection vs.
temperature (VOUT = 2.5 V, f = 10 kHz)
Figure 22. Supply voltage rejection vs.
frequency (VOUT = 0.8 V)
0
10
20
30
40
50
60
70
80
90
100
-50
-25
0
25
50
75
100
125
150
T [°C]
C
IN = COUT = 1 µF
V
IN from 2.9 V to 3.1 V, VOUT = 2.5 V, VEN to VIN, IOUT = 100 mA, freq. = 10 kHz
0
10
20
30
40
50
60
70
80
90
100
-50
-25
0
25
50
75
100
125
150
T [°C]
C
IN = COUT = 1 µF
V
IN from 2.9 V to 3.1 V, VOUT = 2.5 V, VEN to VIN, IOUT = 100 mA, freq. = 10 kHz
0
10
20
30
40
50
60
70
80
90
100
0
1020
3040
50
6070
80
90
100
Freq [kHz]
I
OUT = 10 mA
I
OUT = 100 mA
V
IN from 1.7 V to 1.9 V, VEN to VIN, VOUT = 0.8 V, CIN = COUT = 1 µF
0
10
20
30
40
50
60
70
80
90
100
0
1020
3040
50
6070
80
90
100
Freq [kHz]
I
OUT = 10 mA
I
OUT = 100 mA
V
IN from 1.7 V to 1.9 V, VEN to VIN, VOUT = 0.8 V, CIN = COUT = 1 µF



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