S-1172 Seiko Instruments, S-1172 Datasheet - Page 23

• Manufacturer Part Number: S-1172
• Description: HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
• Manufacturer: Seiko Instruments

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(3) Transient Response Characteristics of ON/OFF Pin (Ta = 25°C)
Rev.1.1
S-1172B50
V
S-1172B10
V
S-1172B50
V
IN
IN
IN
= 5.5 V, C
= 2.0 V, C
= 5.5 V, C
5.20
5.15
5.10
5.05
5.00
4.95
4.90
−1
20
16
12
−4
−500
−500
5
4
3
2
1
0
8
4
0
−200
_00
V
V
V
I
V
V
OUT
OUT
ON/OFF
ON/OFF
OUT
OUT
OUT
OUT
OUT
0
= 4.7 µ F, C
= 4.7 µF, C
0
= 4.7 µF, C
0
200
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
500
500
400
IN
t [µs]
t [µs]
t [µs]
= 4.7 µ F, I
IN
IN
600
= 4.7 µF, I
= 4.7 µF, I
1000
1000
800 1000 1200
OUT
1500
1500
= 50 ↔ 100 mA
OUT
OUT
= 100 mA
= 100 mA
2000
2000
Seiko Instruments Inc.
150
100
50
0
−50
−100
−150
3
−2
−3
9
−6
−9
2
1
0
−1
6
3
0
−3
V
S-1172B30
V
IN
IN
= 5.5 V, C
= 4.0 V, C
5.70
5.50
5.30
5.10
4.90
4.70
4.50
10
−2
−500
8
−200
6
4
2
0
V
V
I
V
OUT
OUT
OUT
ON/OFF
OUT
OUT
0
= 4.7 µ F, C
= 4.7 µF, C
0
200
500
400
IN
t [µs]
t [µs]
= 4.7 µ F, I
IN
600
= 4.7 µF, I
1000
800 1000 1200
OUT
S-1172 Series
1500
= 100 ↔ 500 mA
OUT
= 100 mA
2000
400
200
0
600
−200
−400
−600
6
4
2
0
−2
−4
−6
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