HIGH RIPPLE-REJECTION AND LOW DROPOUT MIDDLE-OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1_00
S-1133 Series
(3) ON/OFF pin transient response characteristics (Ta = 25 °C)
S-1133B12
S-1133B30
V
IN = 2.2 V, COUT = 2.2 µF, CIN = 2.2 µF, IOUT = 100 mA
V
IN = 4.0 V, COUT = 1.0 µF, CIN = 1.0 µF, IOUT = 100 mA
5
4
3
2
1
0
10
8
6
6
4
4
VON/OFF
V
ON/OFF
6
2
2
4
0
0
2
−2
−4
−6
−2
−4
−6
V
OUT
V
OUT
0
−1
−2
−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 = 100 mA
14
12
10
8
8
6
4
V
ON/OFF
2
6
4
2
0
0
V
OUT
−2
−4
−6
−8
−2
−40 −20 0 20 40 60 80 100120140160
t [µs]
26
Seiko Instruments Inc.