AME8845 Datasheet, PDF (13/18 Pages) Analog Microelectronics – 3A CMOS LDO

AME, Inc.
AME8845
Output Voltage(2.5V) vs. Input Voltage
3.0
2.5
2.0
55 ^oC
1.5 85 ^oC
125 ^oC
1.0
-45C
0.5
-45 ^oC
-5 ^oC
25 ^oC
0.0
0
1
2
3
4
5
6
Input Voltage (V)
PSRR vs. Frequency
-20
-30
-40
-50
-60
V_IN=5V I_LOAD=100mA
-70
C_L=10µF V_OUT=3.3V
-80
1.0E+01
1.0E+02
1.0E+03 1.0E+04 1.0E+05
Frequency (Hz)
1.0E+06
3A CMOS LDO
Output Noise vs. Frequency
25
V_IN=5V
V_IL=100mA
C_L=10µF V_OUT=3.3V
20
15
10
5
0
10
100
1000
10000
100000
Frequency (HZ)
Ground Current vs. Load Current
350
IQ(uA)
300
250
200
150
100 ^{Vout = 3.3V}
Cin= 0.1 F(ceramic)
50 ^{Cout= 2.2 F(ceramic)}
Vin= Vo+1.0V
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Load Current (A)
Load Regulation Deviation
0.16
0.14
V _OUT =2.5V
0.12
C_IN=3.3µF (Ceramic)
0.10
C_OUT=3.3µF (Ceramic)
∆I_L=3A
0.08
0.06
0.04
0.02
0.00
-0.02
-0.04
-0.06
-40-30 -20 -10 0 10 20 25 30 40 50 60 70 80 90100 110 125
Temperature(^oC)
13