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AAT1140 データシートの表示(PDF) - Advanced Analogic Technologies
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AAT1140
Fast Transient 600mA Step-Down Converter
Advanced Analogic Technologies
AAT1140 Datasheet PDF : 19 Pages
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SwitchReg
TM
Typical Characteristics
Load Transient Response
(300mA to 400mA; V
IN
= 3.6V;
V
OUT
= 1.8V; C
1
= 10
μ
F)
1.90
1.85
V
O
1.80
1.75
I
O
400mA
300mA
0.4
I
L
0.3
0.2
0.1
Time (50
μ
s/div)
Line Response
(V
OUT
= 1.8V @ 400mA)
1.82
6.0
1.81
5.5
1.80
5.0
1.79
4.5
1.78
4.0
1.77
3.5
1.76
3.0
Time (25
μ
s/div)
Output Ripple
(V
IN
= 3.6V; V
OUT
= 1.8V; Load = 3
Ω
)
0.08
1.40
0.07
1.20
0.06
1.00
0.05
0.80
0.04
0.60
0.03
0.02
0.40
0.01
0.20
0.00
0.00
Time (40ns/div)
PRODUCT DATASHEET
AAT1140
Fast Transient 600mA Step-Down Converter
Load Transient Response
(300mA to 400mA; V
IN
= 3.6V; V
OUT
= 1.8V;
C
1
= 10µF; C
FF
= 100pF)
1.850
1.825
V
O
1.800
1.775
I
O
400mA
300mA
0.4
I
L
0.3
0.2
0.1
Time (50µs/div)
Output Ripple
(V
IN
= 3.6V; V
OUT
= 1.8V; I
OUT
= 1mA)
40
20
V
O
0
-20
-40
-60
I
L
-80
-100
-120
Time (10µs/div)
0.30
0.25
0.20
0.15
0.10
0.05
0.00
-0.05
-0.10
8
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1140.2007.12.1.1
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