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AAT1149 Datasheet(PDF) 8 Page - Advanced Analogic Technologies

Part # AAT1149
Description  3MHz Fast Transient 400mA Step-Down Converter
Download  20 Pages
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Manufacturer  ANALOGICTECH [Advanced Analogic Technologies]
Direct Link  http://www.analogictech.com
Logo ANALOGICTECH - Advanced Analogic Technologies

AAT1149 Datasheet(HTML) 8 Page - Advanced Analogic Technologies

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Typical Characteristics
Soft Start
(VOUT = 1.8V; CFF = 100pF)
Time (50µs/div)
-1.50
-1.00
-0.50
0.00
0.50
1.00
1.50
2.00
2.50
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
Soft Start
(VOUT = 1.8V; No Feedforward Capacitor)
Time (50µs/div)
-4.00
-3.00
-2.00
-1.00
0.00
1.00
2.00
3.00
4.00
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
Load Transient
(VOUT = 1.8V; CFF = 100pF)
Time (50µs/div)
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
400mA
1mA
Load Transient
(VOUT = 1.8V; No Feedforward Capacitor)
Time (50µs/div)
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
400mA
1mA
Load Transient
(VOUT = 1.8V; CFF = 100pF)
Time (50µs/div)
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
10mA
400mA
Load Transient
(VOUT = 1.8V; No Feedforward Capacitor)
Time (50µs/div)
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
0.00
0.25
0.75
1.00
1.25
1.50
1.75
2.00
10mA
400mA
AAT1149
3MHz Fast Transient
400mA Step-Down Converter
8
1149.2006.11.1.0


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