R1182K121B Datasheet, PDF (12/23 Pages) RICOH electronics devices division – Low Voltage 150mA LDO REGULATOR

R1182x
9) Ripple Rejection vs. Frequency (COUT=ceramic0.1µF)
R1182x121x
80
70
60
50
40
30
20
10
0
0.1
VIN=2.2VDC+0.2Vp-p
IOUT=1mA
IOUT=30mA
IOUT=100mA
1
10
100
Frequency f(kHz)
80
70
60
50
40
30
20
10
0
0.1
R1182x281x
VIN=3.8VDC+0.2Vp-p
IOUT=1mA
IOUT=30mA
IOUT=100mA
1
10
100
Frequency f(kHz)
80
70
60
50
40
30
20
10
0
0.1
R1182x401x
VIN=5.0VDC+0.2Vp-p
IOUT=1mA
IOUT=30mA
IOUT=100mA
1
10
100
Frequency f(kHz)
10) Input Transient Response (tr=tf=5µs, IOUT=30mA)
R1182x121x
COUT=Ceramic 0.1µF
4
3
Input Voltage
2
R1182x121x
COUT=Ceramic 1µF
4
3
Input Voltage
2
1.3
Output Voltage
1.2
1.1
1.0
0 10 20 30 40 50 60 70 80 90
Time t (µs)
1.3
Output Voltage
1.2
1.1
1.0
0 10 20 30 40 50 60 70 80 90
Time t (µs)
12