PAM3101
300mA High PSRR Low Dropout CMOS Linear Regulator
Typical Performance Characteristics
+
0
-1
0
-2
0
-3
0
-4
0
d
B
9. Power Supply Ripple Rejection
T
10. Load Transient Response
Io
DC
Coupling
Io=300mA
Io=100mA
Vo
AC
Coupling
-5
0
-6
0
-7
0
-8
0
-9
0
-10
0
10
Io=1mA
2
0
5
0
1
00
2
00
50
0
1k
H
z
2
k
5
k
1
0k
20
k
50 10
k 0k
Vo=2.5V,V
IN
=4V, Vpp=1V
Vo=2.5V, V
IN
=3.3V, Io=1mA to 300mA
11. Line Transient Response
+0
-10
-20
-30
-40
d
B
-50
-60
-70
-80
-90
TT TT T
T
Io=300mA
Io=100mA
V
IN
DC
Coupling
V
O
AC
Coupling
Io=1mA
20
50
100
200
500
1k
Hz
2k
5k
10k
20k
50k 100k
-100
10
Vo=2.5V
,
V
IN
=4V, Vpp=1V, C
BYP
=10nF
Vo=2.5V, V
IN
=3V to 5V,Io=1mA
12. Turn-on Response
+0
-1
0
-2
0
-3
0
-4
0
d
B
-5
0
-6
0
-7
0
-8
0
-9
0
T TT
Io=300mA
Io=100mA
V
IN
DC
Coupling
V
O
DC
Coupling
Io=1mA
-10
0
10
20
50
100
200
500
1k
H
z
2k
5k
10k
20
k
50k 100k
Vo=1.8V,V
IN
=4V, Vpp=1V, C
BYP
=10nF
V
IN
=0 to 5V
Power Analog Microelectronics
,
Inc
www.poweranalog.com
09/2008 Rev 1.4
10
PAM [ POWER ANALOG MICOELECTRONICS ]
