R1170X Datasheet, PDF (13/16 Pages) RICOH electronics devices division – 800mA LDO REGULATOR

9)Ripple Rejection vs. Input Voltage
R1170X301B
IOUT = 1mA
COUT = 10uF
60
f = 400Hz
50
f =1kHz
40
30
f = 10kHz
20
10
0
3
3.2
3.4
3.6
Input Voltage VIN(V)
60
50
40
30
20
10
0
3
R1170X301B
IOUT = 10mA
COUT = 10uF
f = 400Hz
f =1kHz
f = 10kHz
3.2
3.4
3.6
Input Voltage VIN(V)
R1170X301B
IOUT = 100mA
COUT = 10uF
60
f = 400Hz
50
f =1kHz
40
30
f = 10kHz
20
10
0
3
3.2
3.4
3.6
Input Voltage VIN(V)
10)Input Transient Response (Topt=25°C)
R1170X151B
tr=tf=10us
IOUT=100mA
COUT=Ceramic 10uF
1.8
4
1.75
3.5
1.7
Input Voltage
3
1.65
2.5
1.6
2
1.55
Output Voltage
1.5
1.5
1
1.45
0.5
1.4
0
0
20
40
60
80
100
120
140
160
180
200
Time t(us）
Rev. 1.10
-13-