PAM3101_13 Datasheet, PDF (10/26 Pages) Power Analog Micoelectronics – 300mA High PSRR Low Dropout CMOS Linear Regulator

PAM3101
300mA High PSRR Low Dropout CMOS Linear Regulator
Typical Performance Characteristics
Audio Precision
12/28/06 17:44:10
9. Power Supply Ripple Rejection
+0
T
-10
10. Load Transient Response
-20
-30
-40
d _-50
B
-60
Io=300mA
Io=100mA
Io
DC
Coupling
Vo
AC
Coupling
-70
-80
Io=1mA
-90
-100
10 20
50 100 200 500 1k 2k
5k 10k 20k 50k 100k
Hz
Vo=2.5V, V_IN =4V, Vpp=1V
Sweep Trace Color LineStyle Thick Data
Axis Comment
Audio Precision
1 1 Green Solid 1 Anlr.Crosstalk Left
12/28/06 17:15:08
2 1 Yellow Solid 1 Anlr.Crosstalk Left
+0
T3T TT 1T Red Solid 1 Anlr.Crosstalk Left
4
-10
1 Magenta Solid 1 Anlr.Crosstalk Left
shanghai PSRR-3test.at1
-20
Vo=2.5V, V_IN=3.3V, Io=1mA to 300mA
11. Line Transient Response
-30
-40
d
-50
B
-60
-70
-80
Io=300mA
Io=100mA
V_IN
DC
Coupling
V_O
AC
Coupling
-90
Io=1mA
-100
10 20
50 100 200
500 1k 2k
Hz
5k 10k 20k
50k 100k
Vo=2.5V, V_IN =4V, Vpp=1V, C_BYP=10nF
Vo=2.5V,V_IN=3V to 5V,Io=1mA
Audio Precision
01/22/07 14:03:16
+0
T TT
-10
-20
-30
-40
d _-50
B
-60
Io=300mA
Io=100mA
-70
-80
-90
-100
10 20
Io=1mA
50 100 200 500 1k 2k
5k 10k 20k 50k 100k
Vo=1.8V, V_IN =4V, V^Hzpp=1V, C_BYP=10nF
Sweep Trace Color LineStyle Thick Data
Axis Comment
1 1 Red Solid 2 Anlr.Crosstalk Left
2 1 Magenta Solid 2 Anlr.Crosstalk Left
3 1 Blue Solid 2 Anlr.Crosstalk Left
Power Analog Microelec ^{shanghaiPSRR-3test.at1} tronics, Inc
12. PSRR vs V-dropout@Vout=3.28V
0
-10
PSRR with bypass,
cap=10nF
-20
PSRR without
bypass cap
-30
-40
-50
-60
20 40 60 80 100 120 140 160 180 200 220
V-dropout (mV)
www.poweranalog.com
10
11/2010 Rev 2.5