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S-L2980A28MC-TF-G
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P23
HIGH RIPPLE-REJECTION
AND LOW DROPOUT CMOS VOL
T
AGE REGULA
TOR
S-L2980 Series
Rev
.
5.1
_00
Seiko Instrument
s Inc.
16
5. Output V
olt
age versus
Ambient T
emperature
S-L2980A15 S-L2980A30
1.47
1.48
1.49
1.50
1.51
1.52
1.53
–50
0
50
100
T
a [°C]
V
OUT
[V]
2.94
2.96
2.98
3.00
3.02
3.04
3.06
–50
0
50
100
T
a [°C]
V
OUT
[V]
S-L2980A50
4.90
4.95
5.00
5.05
5.10
–50
0
50
100
T
a [°C]
V
OUT
[V]
6. Line Regulation versus
Ambient T
emperature
7. Load Regulation versus
Ambient T
emperature
S-L2980Axx S-L2980Axx
0
10
20
30
40
–50
0
50
100
T
a
[°C
]
Δ
V
OUT1
[mV]
S-L2980A15
C
IN
=4.7
μ
F,
C
L
=10
μ
F
S-L2980A30
S-L2980A50
0
10
20
30
40
–50
0
50
100
T
a [°
C
]
Δ
V
OUT2
[mV]
S-L2980A15
C
IN
=4.7
μ
F,
C
L
=10
μ
F
S-L2980A30
S-L2980A50
HIGH RIPPLE-REJECTION
AND LOW DROPOUT CMOS VOL
T
AGE REGULA
TOR
Rev
.
5.1
_00
S-L2980 Series
Seiko Instrument
s Inc.
17
8. Threshold V
olt
age of ON/OFF Pin versus Input V
oltage
S-L2980A15
R
L
=100
Ω
, C
IN
=4.7
μ
F,
C
L
=10
μ
F
V
SH /
V
SL
[V]
10
V
IN
[V]
0
0.0
1.5
1.0
0.5
8
6
4
2
Ta =
−
40
°
C
85
°
C
25
°
C
Ta =
−
40
°
C
25
°
C
85
°
C
9. Current Consumption versus Input V
oltage
S-L2980A15 S-L2980A30
0
20
40
60
80
100
0
2
4
6
8
10
V
IN
[V]
I
SS1
[
μ
A]
25°C
85°C
T
a=–40°C
0
20
40
60
80
100
0
2
4
6
8
10
V
IN
[V]
I
SS1
[
μ
A]
25°C
85°C
T
a=–40°C
S-L2980A50
0
20
40
60
80
100
0
2
4
6
8
10
V
IN
[V]
I
SS1
[
μ
A]
25°C
85°C
T
a=–40°C
10. Ripple Rejection
S-L2980A30 (T
a=25°C)
S-L2980A50 (T
a=25°C)
0
20
40
60
80
100
Frequency [Hz]
Ripple Rejection
[dB]
V
IN
=4.0 V, C
L
=2.2
μ
F
10
100
1 k
10 k
100 k
1 M
50 mA
I
OUT
=1 mA
0
20
40
60
80
100
Frequency [Hz]
Ripple Rejection
[dB]
V
IN
=6.0 V, C
L
=2.2
μ
F
10
100
1 k
10 k
100 k
1 M
50 mA
I
OUT
=1 mA
HIGH RIPPLE-REJECTION
AND LOW DROPOUT CMOS VOL
T
AGE REGULA
TOR
S-L2980 Series
Rev
.
5.1
_00
Seiko Instrument
s Inc.
18
Reference Dat
a
1. T
ransient Response Characteristics (S-L2980A30MC, T
ypical data, T
a=25
°
C)
Oversh
oot
Input voltage
or
Load curren
t
Output voltage
Undershoot
1-1. Power Source Fluctuation
Overshoot Undershoot
TIM
E
(2
0
μ
s /
d
iv
.
)
V
OUT
[V]
V
IN
C
L
=2.2
μ
F
V
IN
, V
ON/OFF
=4.0
→
5.0
V
, I
OUT
=1.0 m
A
5.0
4.0
3.10
3.05
3.0
V
IN
V
OUT
V
IN
[V]
TIM
E
(2
0
μ
s /
d
iv
.
)
V
OUT
[V]
V
IN
C
L
=2.2
μ
F
5.0
4.0
3.10
3.05
3.0
V
IN
, V
ON/OFF
=5.0
→
4.
0 V
,
I
OUT
=1.0 m
A
V
OUT
V
IN
[V]
Overshoot Undershoot
TIM
E
(2
0
μ
s /
d
iv
.
)
V
OUT
[V]
V
IN
C
L
=2.2
μ
F
5.0
4.0
3.10
3.05
3.0
V
IN
, V
ON/OFF
=4.0
→
5.
0 V
,
I
OUT
=50 mA
V
IN
[V]
V
OUT
TIM
E
(2
0
μ
s /
d
iv
.
)
V
OUT
[V]
V
IN
C
L
=2.2
μ
F
V
IN
, V
ON/OFF
=5.0
→
4.
0 V
,
I
OUT
=50 mA
5.0
4.0
3.10
3.05
3.0
V
OUT
V
IN
[V]
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P23
S-L2980A28MC-TF-G
Mfr. #:
Buy S-L2980A28MC-TF-G
Manufacturer:
ABLIC
Description:
LDO Voltage Regulators VOLTAGE REGULATOR
Lifecycle:
New from this manufacturer.
Delivery:
DHL
FedEx
Ups
TNT
EMS
Payment:
T/T
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