AAT2510
Dual 400mA, 1MHz Step-Down DC-DC Converter
Typical Channel Characteristics
Load Transient Response
(30mA - 300mA; VIN = 3.6V; VOUT = 1.8V; C1 = 4.7µF)
Line Transient
(VOUT = 1.8V @ 400mA)
1.90
1.85
1.80
1.75
1.70
1.65
1.60
1.55
1.50
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
2.0
1.9
1.8
1.7
300mA
1.6
1.5
30mA
1.4
1.3
1.2
0.0
-0.2
Time (25µs/div)
Time (25µs/div)
Line Regulation
(VOUT = 1.8V)
Soft Start
(VIN = 3.6V; VOUT = 1.8V; 400mA)
0.1
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
0.05
0
IOUT = 100mA
3.0
2.0
-0.05
-0.1
-0.15
-0.2
-0.25
-0.3
-0.35
1.0
IOUT = 10mA
0.0
-1.0
-2.0
-3.0
-4.0
IOUT = 400mA
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
250µs/div
Input Voltage (V)
Output Ripple
(VIN = 3.6V; VOUT = 1.8V; 400mA)
40
20
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-20
-40
-60
-80
-100
-120
Time (250ns/div)
2510.2005.08.1.5
7
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
