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