r1120n RICOH Co.,Ltd., r1120n Datasheet - Page 16

• Manufacturer Part Number: r1120n
• Description: Low Noise 150ma L.d.o Regulator
• Manufacturer: RICOH Co.,Ltd.

7) Dropout Voltage vs. Set Output Voltage
8) Ripple Rejection vs. Frequency
80
70
60
50
40
30
20
10
80
70
60
50
40
30
20
10
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
0
0.1
0.1
2.0
Set Output Voltage Vreg(V)
3.0
Frequency f(kH
Frequency f(kH
R1120N301B
R1120N301B
1
1
R1120N
I
I
I
I
I
I
OUT
OUT
OUT
OUT
OUT
OUT
=1mA
=30mA
=50mA
=1mA
=30mA
=50mA
4.0
V
V
IN
IN
=4V
=4V
10
10
1B
Z
I
I
I
I
I
OUT
OUT
OUT
OUT
OUT
)
Z
)
C
C
DC
DC
5.0
OUT
OUT
=150mA
=100mA
=50mA
=30mA
=10mA
Topt=25˚C
+0.5Vp-p
+0.5Vp-p
=4.7 F
=10 F
100
100
6.0
80
70
60
50
40
30
20
10
80
70
60
50
40
30
20
10
0
0
0.1
0.1
Frequency f(kH
Frequency f(kH
R1120N401B
R1120N301B
1
1
I
I
I
I
I
I
OUT
OUT
OUT
OUT
OUT
OUT
=1mA
=30mA
=50mA
=1mA
=30mA
=50mA
V
V
IN
IN
=5V
=4V
10
10
Z
Z
)
)
C
C
DC
DC
OUT
OUT
+0.5Vp-p
+0.5Vp-p
=4.7 F
=6.8 F
R1120N
100
100
13