rp200x RICOH Co.,Ltd., rp200x Datasheet - Page 17

• Manufacturer Part Number: rp200x
• Description: 3-mode 300ma Ldo Regulator
• Manufacturer: RICOH Co.,Ltd.

9) Ripple Rejection vs. Input Bias Voltage (C1=none, C2=1.0μF, Ripple=0.2V
10) Ripple Rejection vs. Frequency (C1=none, C2=1.0μF, Ripple=0.2V
90
80
70
60
50
40
30
20
10
0
120
100
90
80
70
60
50
40
30
20
10
2.8
80
60
40
20
0
0
2.8
0.1
3.3
(Auto ECO Low Power Mode)
3.3
Input Voltage V
(Auto ECO Fast Mode)
1
Input Voltage V
3.8
Frequency f (kHz)
RP200x28xx
RP200x28xx
RP200x08xx
3.8
4.3
10
4.3
I
I
I
I
OUT
OUT
OUT
OUT
V
IN
IN
=1mA (AE="L")
=1mA (AE="H")
=30mA
=50mA
=1.8V+0.2Vp-p
(V)
4.8
IN
f=100Hz
f=1kHz
f=10kHz
f=100kHz
4.8
(V)
I
100
OUT
I
f=100Hz
f=1kHz
f=10kHz
f=100kHz
OUT
AE=0V
=1mA
5.3
=30mA
AE=0V
5.3
1000
120
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
80
60
40
20
0
0
0
2.8
2.8
0.1
3.3
3.3
(Auto ECO Fast Mode)
1
Input Voltage V
Input Voltage V
(Fixed Fast Mode)
Frequency f (kHz)
RP200x28xx
RP200x28xx
RP200x18xx
3.8
3.8
p-p
, T
I
I
I
I
10
OUT
OUT
OUT
OUT
4.3
4.3
opt
V
=1mA (AE="L")
=1mA (AE="H")
=30mA
=50mA
AE=Set V
p-p
IN
=2.8V+0.2Vp-p
=25°C)
IN
IN
, T
(V)
4.8
(V)
4.8
100
f=100Hz
f=1kHz
f=10kHz
f=100kHz
I
f=100Hz
f=1kHz
f=10kHz
f=100kHz
OUT
opt
I
OUT
OUT
=50mA
AE=0V
=25°C)
=1mA
5.3
5.3
+1V
1000
RP200x
17