R1122N_17 Datasheet, PDF (15/21 Pages) RICOH electronics devices division – LOW NOISE 150mA LDO REGULATOR

7) Ripple Rejection vs. Frequency
90.00
R1122N151A/B
VIN=2.5V+0.5Vp-p
COUT=2.2μF IOUT=30mA
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
1
10
100
Frequency Freq (kHz)
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
R1122N301A/B
VIN=4.0V+0.5Vp-p
COUT=2.2μF IOUT=30mA
1
10
100
Frequency Freq (kHz)
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
R1122N501A/B
VIN=6.0V+0.5Vp-p
COUT=2.2μF IOUT=30mA
1
10
100
Frequency Freq (kHz)
R1122N
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
0.1
R1122N201A/B
VIN=3.0V+0.5Vp-p
COUT=2.2μF IOUT=30mA
1
10
100
Frequency Freq (kHz)
R1122N401A/B
VIN=5.0V+0.5Vp-p
COUT=2.2μF IOUT=30mA
1
10
100
Frequency Freq (kHz)
15