7)Dropout Voltage vs. Set Output Voltage(Topt=25°C)
R1170XXXXB
0.35
0.3
0.25
IOUT=500mA
0.2
IOUT=300mA
0.15
0.1
IOUT=100mA
0.05
0
1
1.5
2
2.5
3
3.5
4
Set Output Voltage VSET(V)
8)Ripple Rejection vs. Frequency
R1170X151B
R1170X201B
IN
V =3V+0.5Vp-p
IN
V =2.5V+0.5Vp-p
OUT
I
=100mA
OUT
I
=100mA
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Ripple Frequency f(kHz)
Ripple Frequency f (kHz)
R1170X301B
R1170X401B
IN
V =5V+0.5Vp-p
IN
V =4V+0.5Vp-p
OUT
I
=100mA
OUT
I
=100mA
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Ripple Frequency f (kHz)
Ripple Frequency f (kHz)
Rev. 1.10
- 12 -
RICOH [ RICOH ELECTRONICS DEVICES DIVISION ]
