AME, Inc.
AME8815
1.5A CMOS LDO
Transient Line Response
V
OUT
(50mV/DIV)
Load Step 40mA to 1.5A
V
OUT
10mV/DIV I
LOAD
1A/DIV
V
IN
(2V/DIV)
C
IN
= 4.7µF
C
O U T
= 4.7µF
T
R
= T
F
= 1µS
VOUT = 1.5V
0A
C
IN
= 4.7µF
C
O U T
= 4.7µF
V
IN
= 4.0V
V
O U T
= 1.8V
0V
Time (20µS/DIV)
µ
Time 500
µ
S/DIV
Current Limit Response
3
Current Limit Vs. V
IN
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
2
3
4
5
6
7
8
C
I N
= 4.7µF
C
O U T
= 4.7µF
V
O U T
= 1.8V
V
OUT
1V/DIV
0V
I
L I M
I
S C
0A
I
LOAD
1A/DIV
Time 1mS/DIV
Current Limit (A)
V
I N
= 5V
C
I N
= 4.7µF
C
O U T
= 4.7µF
V
IN
(V)
1.6
Short Circuit Current VS. V
IN
C
I N
= 4.7µF
C
O U T
= 4.7µF
Overtemperature Shutdown
I
OUT
1A/DIV
Short Circuit Current (A)
1.4
1.2
1
0.8
0.6
0.4
0.2
0
2
0A
V
IN
= 4V
C
IN
= 4.7µF
C
O U T
= 4.7µF
V
OUT
1V/DIV
0V
3
4
5
6
7
8
Time 100mS/DIV
13
V
IN
(V)
AME [ ANALOG MICROELECTRONICS ]
