AAT3242
300mA/150mA Dual CMOS LDO Linear Regulator
Typical Characteristics
Unless otherwise noted, V
IN
= 5V, T
A
= 25°C.
Turn-On Time and POK Delay
Line Transient Response
6
5
3.25
V
ENABLE
(2V/div)
Input Voltage (V)
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
500
3.00
Load Transient Response 300mA
800
700
Output Voltage (V)
Output Voltage (V)
2.85
2.80
2.75
2.70
2.65
2.60
V
OUT
400
300
200
100
2.90
2.80
2.70
2.60
2.50
2.40
2.30
2.20
2.10
Output Current (mA)
Output Current (mA)
V
OUT
600
500
400
300
200
I
OUT
0
-100
I
OUT
100
0
-100
Time (100
µs/div)
10µs/div
POK Output Response
V
IN
(2V/div)
Output Current (mA)
1200
1000
800
600
400
200
0
-200
Over-Current Protection
V
OUT
(2V/div)
V
POK
(1V/div)
Time (200µs/div.)
Time (20ms/div)
3242.2005.01.1.4
7
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
