9) Ripple Rejection vs. Input Bias
R1141Q281X
IOUT=1mA, CIN = none, COUT = Ceramic 2.2µF
R1141Q281X
IOUT=30mA, CIN = none, COUT = Ceramic 2.2µF
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
1kHz
10kHz
100kHz
1kHz
10kHz
100kHz
2.8
2.9
3
3.1
IN
3.2
3.3
2.8
2.9
3
3.1
3.2
3.3
Input Voltage V (V)
IN
Input Voltage V (V)
R1141Q281X
IOUT=50mA, CIN = none, COUT = Ceramic 2.2µF
100
90
80
70
60
50
40
1kHz
10kHz
100kHz
30
20
10
0
2.8
2.9
3
3.1
3.2
3.3
Input Voltage VIN(V)
10) Input Transient Response
R1141Q281X
VIN=3.8V to 4.8V, IOUT=30mA, COUT = Ceramic 1.0µF, Tr=Tf=5.0µs
2.83
2.82
2.81
2.80
2.79
2.78
2.77
6
Input Voltage
5
4
3
Output Voltage
2
1
0
-20
-10
0
10
20
30
40
50
60
70
80
Time t[us]
Rev. 1.10
- 12 -
RICOH [ RICOH ELECTRONICS DEVICES DIVISION ]
