HIGH RIPPLE-REJECTION AND LOW DROPOUT MIDDLE-OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_00
S-1133 Series
Reference Data
(1) Input transient response characteristics (Ta = 25 °C)
S-1133B12
S-1133B30
IOUT = 100 mA, tr = tf = 5.0 µs, COUT = 1.0 µF, CIN = 1.0 µF
I
OUT = 100 mA, tr = tf = 5.0 µs, COUT = 2.2 µF, CIN = 2.2 µF
1.36
1.32
1.28
1.24
1.20
1.16
1.12
3.16
3.12
3.08
3.04
3.00
2.96
2.92
3.5
3.0
2.5
2.0
1.5
6
5
4
3
2
V
IN
V
IN
V
OUT
V
OUT
1.0
0.5
1
0
−20 0 20 40 60 80 100120140160180
t [µs]
−
20 0 20 40 60 80 100120140160180
t [µs]
S-1133B60
OUT = 100 mA, tr = tf = 5.0 µs, COUT = 1.0 µF, CIN = 1.0 µF
I
6.16
6.12
6.08
6.04
6.00
5.96
5.92
9
8
7
6
5
V
IN
V
OUT
4
3
−
20 0 20 40 60 80 100120140160180
t [µs]
(2) Load transient response characteristics (Ta = 25 °C)
S-1133B12
S-1133B30
V
IN = 2.2 V, COUT = 2.2 µF, CIN = 2.2 µF, IOUT = 50 ↔ 100 mA
V
IN = 4.0 V, COUT = 1.0 µF, CIN = 1.0 µF, IOUT = 50 ↔ 100 mA
1.6
1.5
1.4
1.3
1.2
1.1
1.0
150
100
50
3.16
3.12
3.08
3.04
3.00
2.96
2.92
150
100
50
I
OUT
I
OUT
0
0
V
OUT
V
OUT
−50
−100
−150
−50
−100
−150
−40 −20 0 20 40 60 80 100120140160
t [µs]
−40 −20 0 20 40 60 80 100120140160
t [µs]
S-1133B60
V
IN = 7.0 V, COUT = 1.0 µF, CIN = 1.0 µF, IOUT = 50 ↔ 100 mA
6.16
6.12
6.08
6.04
6.00
5.96
5.92
150
100
50
I
OUT
0
V
OUT
−50
−100
−150
−40 −20 0 20 40 60 80 100120140160
t [µs]
Seiko Instruments Inc.
25
SII [ SEIKO INSTRUMENTS INC ]
