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零件编号
产品描述 (功能)
NCP690(2009) 查看數據表(PDF) - ON Semiconductor
零件编号
产品描述 (功能)
生产厂家
NCP690
(Rev.:2009)
1 A, Low IGND, Very Low Dropout Regulator (VLDO) with/without Enable
ON Semiconductor
NCP690 Datasheet PDF : 14 Pages
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5.05
5.00
4.95
C
IN
= C
OUT
= 10
m
F,
t
rise
= 10
m
s
NCP690, NCP691, NCP692
TYPICAL CHARACTERISTICS
6
2.5
V
IN
5
2.0
1.5
V
OUT
1.0
0.5
0
V
EN
V
OUT
V
IN
= 2.5 V,
C
IN
= C
OUT
= 10
m
F,
I
OUT
= 1 A,
t
rise_EN
= 10
m
s
TIME (50
m
s/DIV)
Figure 27. Line Transient
(V
out
= 5.0 V)
TIME (50
m
s/DIV)
Figure 28. Start
−
Up Transient
(V
out
= 1.5 V)
3.5
V
EN
6
3.0
5
2.5
V
OUT
4
2.0
3
1.5
2
1.0
V
IN
= 3.5 V,
0.5
C
IN
= C
OUT
= 10
m
F,
1
I
OUT
= 1 A,
0
t
rise_EN
= 10
m
s
0
V
EN
V
OUT
V
IN
= 6.0 V,
C
IN
= C
OUT
= 10
m
F,
I
OUT
= 1 A,
t
rise_EN
= 10
m
s
TIME (50
m
s/DIV)
Figure 29. Start
−
Up Transient
(V
out
= 2.5 V)
TIME (50
m
s/DIV)
Figure 30. Start
−
Up Transient
(V
out
= 5.0 V)
70
60
50
40
30
20
10
0
10
V
IN
= 2.5 V,
V
OUT
= 1.5 V,
V
PP
= 0.5 V,
C
OUT
= 1
m
F
100
1000
10,000
FREQUENCY (Hz)
Figure 31. PSRR vs. Frequency
(V
out
= 1.5 V)
100,000
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