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AAT1149 Datasheet(PDF) 8 Page - Advanced Analogic Technologies

Part # AAT1149
Description  3MHz Fast Transient 400mA Step-Down Converter
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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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AAT1149
3MHz Fast Transient 400mA Step-Down Converter
SwitchRegTM
PRODUCT DATASHEET
8
1149.2008.08.1.3
www .analogictech.com
AAT1149
3MHz Fast Transient 400mA Step-Down Converter
SwitchRegTM
PRODUCT DATASHEET
8
1149.2008.08.1.3
www .analogictech.com
Typical Characteristics
Load Transient
(VOUT = 1.1V; No Feedforward Capacitor)
Time (50µs/div)
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
1mA
400mA
Load Transient
(VOUT = 1.1V; CFF = 100pF)
Time (50µs/div)
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
1mA
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
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
0.50
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
400mA
1mA


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