S1172 Datasheet, PDF (21/35 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION LOW DROPOUT

Rev.2.2_01
HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1172 Series
7. Ripple rejection (Ta = +25°C)
S-1172B10
100
80
60
V_IN = 2.0 V, C_OUT = 4.7 μF
IOUT = 1 mA
30 mA
100 mA
40
20
0
10
S-1172B50
100
80
60
40
20
100 1K 10K 100K 1M
Frequency [Hz]
V_IN = 5.5 V, C_OUT = 4.7 μF
IOUT = 1 mA
30 mA
100 mA
0
10 100 1K 10K 100K 1M
Frequency [Hz]
S-1172B30
100
80
60
40
20
0
10
V_IN = 4.0 V, C_OUT = 4.7 μF
IOUT = 1 mA
30 mA
100 mA
100 1K 10K 100K 1M
Frequency [Hz]
Seiko Instruments Inc.
21