300mA/150mA Dual CMOS LDO Linear Regulator
Typical Characteristics
Unless otherwise noted, V
IN
= 5V, T
A
= 25°C.
AAT3242
Turn-On Time and POK Delay
Line Transient Response
V
ENABLE
(2V/div)
Input Voltage (V)
6
5
3.25
V
IN
3.20
Output Voltage (V)
V
OUT
(500mV/div)
V
POK
(500mV/div)
4
3
2
1
0
-1
3.15
3.10
3.05
3.00
V
OUT
2.95
2.90
2.85
Time (10μs/div)
-2
Time (100μs/div)
Load Transient Response
2.90
2.85
2.80
2.75
2.70
2.65
2.60
500
400
300
200
100
3.00
Load Transient Response 300mA
800
700
Output Voltage (V)
2.90
2.80
2.70
2.60
2.50
2.40
2.30
2.20
2.10
Output Current (mA)
Output Current (mA)
Output Voltage (V)
V
OUT
V
OUT
600
500
400
300
200
I
OUT
0
-100
I
OUT
100
0
-100
Time (100μs/div)
Time (10μs/div)
POK Output Response
V
IN
(2V/div)
1200
Over-Current Protection
1000
800
600
400
200
0
-200
V
OUT
(2V/div)
V
POK
(1V/div)
Output Current (mA)
Time (200μs/div)
Time (20ms/div)
3242.2006.04.1.10
7
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
