[AP1153ADSXX]
015000869-E-00 - 16 - 2015/01
11.3 Ripple Rejection
Cout=0.22F, 0.47F, 1.0F, 2.2F
Cnp
0.001F
Cout
Iout=10mA
Vcont
1.8V
Vin(DC)=Vout
TYP
+1.5V
f=100Hz 1MHz
200mVp-p
Vripple
Vin Vout
Vcont Np
1.0F
Cnp=0.00F, 0.01F, 0.1F
Iout=10mA, 20mA, 50mA, 100mA
R.R vs Iout : Frequency=1kHz
R.R vs Low V
IN
: Frequency=1kHz
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0 20 40 60 80 100
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0 0.2 0.4 0.6 0.8 1
Iout=100mA
Iout=50mA
Iout=20mA
Iout=10mA
Iout=1mA
The ripple rejection (R.R) characteristic depends on the characteristic and the capacitance of the output
capacitor. The R.R characteristic at 50kHz or more varies greatly with the capacitor on the output side and
PCB pattern. Please check stability during operation.
C
o
u
t
=
0
.
2
2
F
0.47F
1.0F
2.2F
I
o
u
t
=
1
0
0
m
A
50mA
20mA
10mA
