AME8847 Datasheet, PDF (7/12 Pages) Analog Microelectronics – 800mA CMOS LDO

AME, Inc.
AME8847
Ground Current vs. Input Voltage
45
40
35
85^OC
30
25
O
20
25 C
15
10
5
0
0
1
2
3
4
5
6
7
8
Input Voltage (V)
Dropout Voltage vs. Output Voltage
1400
1200
1000
800
600
Top to Bottom
I_OUT = 800mA
I_OUT = 700mA
I_OUT = 600mA
I_OUT = 500mA
I_OUT = 400mA
I_OUT = 300mA
I_OUT = 200mA
I_OUT = 100mA
400
200
0
1.8
2.5
3.3
4
5
Output Voltage (V)
Line Transient Response
V_IN = 5.0V
C_OUT = 2.2µF
Rev.A.01
Time (2mS/DIV)
800mA CMOS LDO
Load Step (1mA-800mA)
C_OUT = 2.2µF
C_IN = 2.2µF
V_OUT
I _OUT
Time (20mS/DIV)
Power Supply Ripple Rejection Ratio
0
-10 ^COUT ^{= 2.2µF Tantalum}
-20
100mA
-30
-40
-50
100mA
-60
10mA
-70
100 µA
100 µ A
1mA
-80
10
1K
100K
10M
Frequency (Hz)
Noise Measurement
C_OUT = 2.2µF
No Filter
Time (20ms/DIV)
7