PAM3131 Datasheet, PDF (9/14 Pages) Power Analog Micoelectronics – 3A Adjustable Low Voltage Low Dropout CMOS Regulator

PAM3131
3A Adjustable Low Voltage
Low Dropout CMOS Regulator
Typical Performance Characteristics (continued)
Audio Precision
12/05/06 18:30:42
10. Ripple Rejection vs Frequency
+0
11. Load Transient Response
-10
-20
-30
d
-40
B
-50
-60
Io=500mA
Io=100mA
Io
DC
Coupling
Vo
AC
Coupling
-70
Io=1mA
-80
10 20 50 100 200
500 1k 2k
5k 10k 20k 50k 100k
Hz
Audio Precision ^{Vo=0.9V,VIN=2.5V,Vpp=}12¹/0^V5/06 18:24:51
Sweep Trace Color Line Style Thick Data
Axis Comment
1
+0 ₂
3
-10
-20
1 Green Solid 1 Anlr.Crosstalk Left Io=1mA
1 Yellow Solid 1 Anlr.Crosstalk Left Io=100mA
1 Red Solid 1 Anlr.Crosstalk Left
shanghai PSRR-3 test.at1
-30
d
-40
B
-50
Io=500mA
Io=100mA
-60
-70
Io=1mA
Io
DC
Coupling
Vo
AC
Coupling
Vo=1.5V,V_IN=3.3V, Io=1mA to 3.0A
-80
10 20
50 100 200 500 1k 2k
5k 10k 20k 50k 100k
Hz
Audio PrSewceiespionTrace
Vo
Color
=1.5V,V
Line Style Thick
IN=2
Data
.
5
V,
Vp
Axis
p=1V
Comment12/05/06
18:37:46
1
+0 ²
3
-10
1 Blue Solid 1 Anlr.Crosstalk Left Io=1mA
1 Cyan Solid 1 Anlr.Crosstalk Left Io=100mA
1 Green Solid 1 Anlr.Crosstalk Left Io=500mA
shanghai PSRR-3 test.at1
-20
-30
d
-40
B
-50
Io=500mA Io=100mA
-60
Io=1mA
-70
Io
DC
Coupling
Vo
AC
Coupling
Vo=1.5V,V_IN=3.3V, Io=1mA to 1.0A
-80
10 20
50 100 200 500 1k 2k
5k 10k 20k
Hz
Vo=2.5V,V_IN=3.3V,Vpp=0.3V
Sweep Trace Color Line Style Thick Data
Axis Comment
1
1 Magenta Solid 1 Anlr.Crosstalk Left Io=1mA
2
1 Blue Solid 1 Anlr.Crosstalk Left Io=100mA
3
1 Cyan Solid 1 Anlr.Crosstalk Left Io=500mA
shanghai PSRR-3 test.at1
50k 100k
Vo=1.5V,V_IN=3.3V, Io=1A to 3.0A
Power Analog Microelectronics,Inc
www.poweranalog.com
9
10/2010 Rev1.1