AAT2505
Dual Channel, Step-Down
Converter/Linear Regulator
Typical Characteristics
Unless otherwise noted, VIN = 5V, TA = 25°C.
LDO Turn-Off Response Time
LDO Turn-On Time From Enable (VIN present)
(EN = GND; ENLDO = VIN)
(EN = GND; ENLDO = VIN)
VENLDO = 5V/div
VENLDO (5V/div)
VOUT (1V/div)
VIN = 4V
VOUT = 1V/div
Time (50µs/div)
Time (5µs/div)
LDO Line Transient Response
(EN = GND; ENLDO = VIN)
LDO Load Transient Response
(EN = GND; ENLDO = VIN)
2.90
2.85
2.80
2.75
2.70
2.65
2.60
500
400
300
200
100
0
6
3.04
3.03
3.02
3.01
3.00
2.99
2.98
5
VOUT
VIN
4
3
2
VOUT
1
IOUT
-100
0
Time (100µs/div)
Time (100µs/div)
LDO Load Transient Response 300mA
(EN = GND; ENLDO = VIN)
3.00
2.90
2.80
2.70
2.60
2.50
2.40
2.30
2.20
2.10
800
700
600
500
400
300
200
100
0
VOUT
IOUT
-100
Time (10µs/div)
2505.2006.06.1.1
7
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
