AME8822_13 Datasheet, PDF (11/21 Pages) Analog Microelectronics – High PSRR, 250mA CMOS LDO

AME
AME8822
Dropout Voltage vs Temperature
700
650
600
550
500
450
400
350
300
250
200
150
100
50
0
-40 -25 -10
V_IN=2.8V
Io=250mA
5 20 35 50 65 80 95 110 125
Temperature (^oC)
1.820
1.815
1.810
1.805
1.800
1.795
1.790
1.785
1.780
0
Output Voltage vs Load Current
V_IN=2.8V
50
100
150
200
250
Load Current (mA)
Rev.F.04
Load Transient Response
∆i _{=25mA/ µs} ^VIN=2.8V
∆t
200
100
0
50
0
-50
Time (µs)
High PSRR, 250mA CMOS LDO
Output Impedance vs Frequency
2.0
1.8
1.6
1.4
1.2
1.0
I_O=50mA
0.8
0.6
0.4
0.2
I _O=100mA
0.0
10
100
1000
10000
100000 1000000
Frequency (Hz)
Output Voltage vs Temperature
1.815
I_O =1mA
1.810
1.805
I_O=250mA
1.800
1.795
1.790
-40
V_IN=2.8V
-25 -10
5 20 35 50 65 80
Temperature (^oC)
95 110 125
Line Transient Response
Time (µs)
5.3
4.3
20
-20
11