AAT2510 Datasheet, PDF (7/20 Pages) Advanced Analogic Technologies – Dual 400mA, 1MHz Step-Down DC-DC Converter

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