AME, Inc.
AME8822
High PSRR, 250mA CMOS LDO
Dropout Voltage vs Temperature
Output Impedance vs Frequency
2.0
700
650
600
1.8
1.6
1.4
1.2
550
500
450
400
350
300
250
200
150
1.0
IO=50mA
0.8
0.6
0.4
VIN=2.8V
100
50
Io=250mA
IO=100mA
0.2
0.0
10
0
100
1000
10000
100000
1000000
-40 -25 -10
5
20
35
50
65
80
95 110 125
Frequency (Hz)
Temperature (oC)
Output Voltage vs Load Current
Output Voltage vs Temperature
1.820
1.815
1.810
1.805
1.800
1.795
1.790
1.785
1.780
1.815
IO =1mA
VIN=2.8V
1.810
1.805
1.800
IO=250mA
1.795
1.790
VIN =2.8V
250
0
50
100
150
200
125
-40 -25 -10
5
20
35 50
65 80
95 110
Load Current (mA)
Temperature (oC)
Load Transient Response
Line Transient Response
VIN=2.8V
Di
Dt
=25mA/ms
200
100
0
5.3
4.3
50
0
20
-50
-20
Time (ms)
Time (ms)
Rev.D.05
11
AME [ ANALOG MICROELECTRONICS ]
