R1140Q Datasheet, PDF (13/18 Pages) RICOH electronics devices division – SC82 120mA LDO REGULATOR

R1140Q
7) Dropout Voltage vs. Set Output Voltage
1
0.9
0.8
0.7
10mA
0.6
30mA
0.5
50mA
120mA
0.4
0.3
0.2
0.1
0
1.5
2.5
3.5
Set Output Voltage Vreg (V)
8) Ripple Rejection vs. Frequency
R1140Q151×
VIN=2.5VDC+0.5Vp-p
COUT=tantal 1.0µF, Topt=25°C
-90
-80
-70
-60
-50
-40
50mA
1mA
-30
30mA
-20
-10
0
0.1
1.0
10.0
Frequency (kHz)
100.0
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.1
R1140Q281×
VIN=3.8VDC+0.5Vp-p
COUT=tantal 1.0µF, Topt=25°C
50mA
1mA
30mA
1.0
10.0
Frequency (kHz)
100.0
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.1
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.1
R1140Q151×
VIN=2.5VDC+0.5Vp-p
COUT=tantal 2.2µF, Topt=25°C
50mA
1mA
30mA
1.0
10.0
Frequency (kHz)
100.0
R1140Q281×
VIN=3.8VDC+0.5Vp-p
COUT=tantal 2.2µF, Topt=25°C
50mA
1mA
30mA
1.0
10.0
Frequency (kHz)
100.0
12