HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.5.0_00
S-1112/1122 Series
(7) Ripple rejection
S-1112B15 (Ta = 25°C)
S-1112B30 (Ta = 25°C)
VIN = 2.5 V, COUT = 0.47 µF
VIN = 4.0 V, COUT = 0.47 µF
100
100
50 mA
80
80
IOUT = 1 mA
IOUT = 1 mA
30 mA
60
40
20
0
60
40
20
0
30 mA
10k
100k
1M
10
100
1k
100
10k
1M
10
1k
100k
Frequency [Hz]
Frequency [Hz]
S-1112B50 (Ta = 25°C)
VIN = 6.0 V, COUT = 0.47 µF
100
80
50 mA
60
IOUT = 1 mA
30 mA
40
20
0
10
100
1k
10k
100k
1M
Frequency [Hz]
20
Seiko Instruments Inc.