AAT1151 Datasheet, PDF (6/16 Pages) Advanced Analogic Technologies – 850kHz 700mA Synchronous Buck DC/DC Converter

AAT1151
850kHz 700mA Synchronous Buck DC/DC Converter
Typical Characteristics
Output Ripple 1.8V, 50mA, V_IN = 3.6V
Circuit of Figure 1
20
1.4
10
1.2
0
1
-10
0.8
-20
0.6
-30
0.4
-40
0.2
-50
0
-60
-0.2
Time (2µs/div)
Line Transient Response 1.8V, 50mA
Circuit of Figure 1
4.4
120
4.2
100
4
80
3.8
60
3.6
40
3.4
20
3.2
0
3
-20
2.8
-40
Time (20µs/div)
Output Ripple 1.8V, 0.7A, V_IN = 3.6V
Circuit of Figure 1
20
3.5
10
3
0
2.5
-10
2
-20
1.5
-30
1
-40
0.5
-50
0
-60
-0.5
Time (2µs/div)
Line Transient Response 1.8V, 0.7A
Circuit of Figure 1
4.4
120
4.2
100
4
80
3.8
60
3.6
40
3.4
20
3.2
0
3
-20
2.8
-40
Time (20µs/div)
Load Transient Response 50mA to 0.7A
V_IN = 3.6V − Circuit of Figure 1
40
3.5
20
3
0
2.5
-20
2
-40
1.5
-60
1
-80
0.5
-100
0
-120
-0.5
Time (200µs/div)
Soft Start 1.8V, 0.7A, V_IN = 3.6V
Circuit of Figure 1
4
3.5
3
3
2
2.5
1
2
0
1.5
-1
1
-2
0.5
-3
0
-4
-0.5
Time (200µs/div)
6
1151.2005.11.1.4