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參數(shù)資料
| 型號： | ADP3331ART |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 1.5 V-11.75 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.23 V DROPOUT, PDSO6 |
| 封裝： | THERMALLY ENHANCED, SOT-23, 6 PIN |
| 文件頁數(shù)： | 5/8頁 |
| 文件大小： | 135K |
| 代理商： | ADP3331ART |
REV. 0
ADP3331
–5–
3.040
3.000
2.960
2.920
7.5
7.0
0
100
200
TIME –
m
s
300
400
500
V
O
V
I
V
OUT
= 3V
R
L
= 15
V
C
L
= 0.47
m
F
Figure 11. Line Transient Response
3.100
3.050
3.000
2.950
2.900
200
100
0
0
200
400
TIME –
m
s
600
800
1000
V
m
V
IN
= 7V
V
OUT
= 3V
C
L
= 10
m
F
20mA
Figure 14. Load Transient Response
FREQUENCY – Hz
R
0
10
100
1k
10k
100k
1M
10M
–10
–20
–30
–40
–50
–60
–70
–80
–90
C
= 0.47
m
F
I
L
= 0.1mA
C
= 0.47
m
F
I
L
= 200mA
C
L
= 10
m
F
I
L
= 200mA
C
L
= 10
m
F
I
L
= 0.1mA
V
OUT
= 3.0V
Figure 17. Power Supply Ripple
Rejection
3.040
3.000
2.960
2.920
7.5
7.0
0
100
200
TIME –
m
s
300
400
500
V
O
V
I
V
OUT
= 3V
R
L
V
C
L
= 10
m
F
Figure 12. Line Transient Response
3
0
500
400
300
200
100
0
V
m
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
TIME – Sec
V
OUT
I
OUT
V
IN
= 7V
Figure 15. Short Circuit Current
120
160
0
50
10
20
30
40
100
80
60
140
C
L
–
m
F
R
m
V
40
20
0
I
L
= 0mA WITH NOISE REDUCTION
I
L
= 200mA
I
= 200mA
WITH NOISE REDUCTION
I
L
= 0mA
Figure 18. RMS Noise vs. C
L
(10 Hz–100 kHz)
3.100
3.050
3.000
2.950
2.900
200
100
0
0
200
400
TIME –
m
s
600
800
1000
V
m
V
IN
= 7V
V
OUT
= 3V
C
L
m
F
20mA
Figure 13. Load Transient Response
3
2
1
0
3
0
2
0
V
V
OUT
V
ERR
V
SD
0
200
400
TIME –
m
s
600
800
1000
V
IN
= 7V
V
OUT
= 3V
C
L
= 10
m
F
R
L
= 15
V
Figure 16. Turn On–Turn Off Response
FREQUENCY – Hz
V
D
m
V
1
0.01
10
100
1M
0.1
1k
10k
100k
V
OUT
= 3.0V
I
L
C
L
= 0.47
m
F
C
NR
= 0
C
L
= 10
m
F
C
NR
= 0
C
L
= 0.47
m
F
C
NR
= 10nF
C
L
= 10
m
F
C
NR
= 10nF
Figure 19. Output Noise Density
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