Analog Microelectronics, Inc.
AME8801/8812/8840
300mA CMOS LDO
Power Supply Rejection Ratio
-20
-30
-40
Power Supply Rejection Ratio
0
-10
-20
PSRR (dB)
C
L
=2.2µF Tantalum
C
B Y P
=0
100mA
C
L
=2.2µF Tantalum
C
B Y P
=1000pF
100mA
1mA
PSRR (dB)
-30
-40
-50
-60
100mA
10mA
-50
-60
-70
100mA
10mA
100µA
100µA
-70
-80
1.0E+01
100µA
100µA
1mA
-80
1.0E+01
1.0E+03
1.0E+05
1.0E+07
1.0E+03
1.0E+05
1.0E+07
Frequency (Hz)
Frequency (Hz)
Power Supply Rejection Ratio
-10
-20
-30
Power Supply Rejection Ratio
-10
-20
-30
C
B Y P
= 100 pF
C
L
= 10
µF
Tantalum
I
L
= 100 mA
C
BYP
= 0
C
BYP
= 0
C
L
= 5.6
µF
Ceramic
I
L
= 100 mA
C
B Y P
= 100 pF
PSRR ( dB)
-40
-50
-60
-70
PSRR ( dB)
-40
-50
-60
-70
C
B Y P
= 1 nF
C
B Y P
= 10 nF
C
B Y P
= 1 nF
C
B Y P
= 10 nF
-80
1.0E+01 1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.0E+06
-80
1.0E+01
1.0E+02
1.0E+03
1.0E+04
1.0E+05
Frequency (Hz)
Frequency (Hz)
Short Circuit Response
I
LOAD
(400mA/DIV)
R
L O A D
=100Ω
R
S H O R T
=0.1Ω
Overtemperature Shutdown
I
OUT
(200mA/DIV)
0
R
L O A D
=6.6Ω
0
V
OUT
(1V/DIV)
V
OUT
(1V/DIV)
0
TIME (2mS/DIV)
TIME (0.5Sec/DIV)
0
9
AME [ ANALOG MICROELECTRONICS ]
