R1121N_02 Datasheet, PDF (13/17 Pages) RICOH electronics devices division – LOW NOISE 150mA LDO REGULATOR

80
70
60
50
40
30
20
10
0
0.1
R1121N401B
VIN = 5.0VDC + 0.5Vp-p
COUT = tantal 1.0µF
IOUT= 1mA
IOUT = 30mA
IOUT = 50mA
1
10
100
Frequency f (kHz)
9) Ripple Rejection vs. Input Voltage (DC bias)
R1121N301B
IOUT = 1mA
COUT = 2.2µF
80
70
60
50
40
30
20
10
0
3.1
f = 400Hz
f = 1kHz
f = 10kHz
3.2
3.3
3.4
3.5
Input Voltage VIN (V)
80
70
60
50
40
30
20
10
0
3.1
R1121N301B
IOUT = 50mA
COUT = 2.2µF
f = 400Hz
f = 1kHz
f = 10kHz
3.2
3.3
3.4
3.5
Input Voltage VIN (V)
80
70
60
50
40
30
20
10
0
0.1
R1121N
R1121N401B
VIN = 5.0VDC + 0.5Vp-p
COUT = tantal 2.2µF
IOUT = 1mA
IOUT = 30mA
IOUT = 50mA
1
10
100
Frequency f (kHz)
80
70
60
50
40
30
20
10
0
3.1
R1121N301B
IOUT = 10mA
COUT = 2.2µF
f = 400Hz
f = 1kHz
f = 10kHz
3.2
3.3
3.4
3.5
Input Voltage VIN (V)
13