AME8818_12 Datasheet, PDF (14/25 Pages) Analog Microelectronics – Low Dropout 300mA CMOS Regulator

AME
AME8818
Low Dropout
300mA CMOS Regulator
n Characterization Curve(For reference only)
V_OUT vs Temperature
3.05
3.04 ^VOUT ^{= 3 .0 V}
3.03
3.02
IOUT =1mA
3.01
3.00
IOUT=300mA
2.99
2.98
2.97
-50 -25
0
+25 +50 +75
Temperature (^oC)
+100 +125
EN Pin Shutdown Threshold Voltage vs
Temperature
1. 50
V_OUT = 1.2V
1.25
1.00
0.75
0.50
0.25
-50
-25
0
+25 +50 +75
Temperature (^oC)
+100 +125
Dropout Voltage vs Load Current
400
350 VOUT = 3.0V
IOUT = 300mA
300
T_A=125 ^OC
250
200
150
100
50
0
0
14
TA=25^OC
T_A=-40^OC
50
100
150
200
250
300
Load Current (mA)
Quiesent Current vs Temperature
100
V_OUT = 3.0V
80
60
I _OUT=300mA
40
I_OUT =1mA
20
0
- 50
-25
0
+25 +50
+75 +100 +125
Temperature (^oC)
Current Limit vs Input Voltage
750
700 ^VOUT ^{= 3.0V}
650
600
550
500
450
400
350
4.0
4.5
5.0
5.5
Input Voltage (V)
Power Supply Rejection Ratio
100
90
I_OUT=10mA
80
IOUT =1mA
V_OUT = 1.2V
C_BYP = 0.1µF
70
60
IOUT=100mA
50
40
30
20
10
0
1K
10K
100K
1M
Frequency ( Hz)
Rev.D.06