APL5151/2/3/4
Typical Characteristics (Cont.)
Output Noise
APL5151-33
Output Noise vs. Bypass Capacitor
250
APL5151-33
300u
250u
200u
150u
V
OUT
(50uV/div)
100u
50u
0
-50u
-100u
-150u
-200u
-250u
-300u
0
Output Noise (uV)
V
IN=4.3V
f=100H
Z
-80KH
Z
I
OUT
=50mA C
OUT
=1uF
C
BP
=0.33uF
200
V
IN
=4.3V f=100H
Z
-80KH
Z
I
OUT
=50mA C
OUT
=1uF
150
100
50
0
2m
4m
6m
8m
10m
0
0.1
0.2
0.3
0.4
Time (s)
Bypass Capacitor (uF)
Load-Transient Response
APL5151-33
Line-Transient Response
APL5151-33
V
OUT
V
OUT
Output Voltage (20mV/div)
V
IN
=4.3V
I
OUT
Output Voltage (50mV/div)
5V
4V
50mA
I
OUT
=50mA
V
IN
1mA
Time (100us)
Time (500us/div)
Copyright
©
ANPEC Electronics Corp.
Rev. B.4 - May., 2005
8
www.anpec.com.tw