AAT3239
500mA MicroPower™ LDO
Typical Characteristics
Unless otherwise noted, V
IN
= 5V, T
A
= 25°C.
Initial Power-Up Response Time
(C
BYP
= 10nF)
V
EN
= 5V/div
Turn-On Time From Enable (V
IN
present)
(C
BYP
= 10nF)
V
EN
(5V/div)
V
OUT
(1V/div)
Time (400µs/div)
V
OUT
= 1V/div
Time (5µs/div)
V
IN
= 4V
Turn-Off Response Time
(C
BYP
= 10nF)
6
Line Transient Response
3.04
3.03
3.02
3.01
3.00
V
EN
(5V/div)
Input Voltage (V)
5
4
3
2
V
IN
V
OUT
1
0
2.99
2.98
V
OUT
(1V/div)
Time (50µs/div)
Time (100µs/div)
Load Transient Response 100mA
1.90
300
2.00
Load Transient Response 300mA
750
Output Voltage (V)
V
OUT
1.85
200
Output Voltage (V)
Output Current (mA)
1.90
1.80
1.70
1.60
1.50
V
OUT
600
450
300
Output Current (mA)
1.80
100
1.75
0
I
OUT
150
0
I
OUT
1.70
-100
1.40
Time (100µs/div)
Time (100µs/div)
6
3239.2006.03.1.2
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
