AAT2554 Datasheet, PDF (14/33 Pages) Advanced Analogic Technologies – Total Power Solution for Portable Applications

AAT2554
Total Power Solution for Portable Applications
Typical Characteristics – LDO Regulator
LDO Initial Power-Up Response Time
7
6
6
5
5
4
4
3
3
2
2
1
1
0
0
LDO Turn-On Time from Enable
(V_IN Present)
6
4
5
3
4
2
3
1
2
0
1
0
Time (50µs/div)
Time (5µs/div)
Turn-Off Response Time
(I = 100mA)
V_EN (5V/div)
V_OUT (1V/div)
Time (50µs/div)
Load Transient Response
2.90
500
2.85 _VOUT
400
2.80
300
2.75
200
2.70
100
2.65
I_OUT
2.60
0
-100
Time (100µs/div)
Line Transient Response
6
3.04
5
3.03
V_IN
4
3.02
3
3.01
2
3.00
V_OUT
1
2.99
0
2.98
Time (100µs/div)
Load Transient Response 300mA
3.0
800
2.9
700
2.8
V_OUT
600
2.7
500
2.6
400
2.5
300
2.4
200
2.3
I_OUT
100
2.2
0
2.1
-100
Time (10µs/div)
14
2554.2007.01.1.2