參數(shù)資料
型號(hào)： AAT1146IJS-1.875-T1
廠商： Advanced Analogic Technologies, Inc.
英文描述： Fast Transient 400mA Step-Down Converter
中文描述： 快速瞬態(tài)400mA的降壓轉(zhuǎn)換器
文件頁(yè)數(shù)： 18/20頁(yè)
文件大?。?/td> 784K
代理商： AAT1146IJS-1.875-T1
Table 3: Evaluation Board Component Values.
Table 4: Typical Surface Mount Inductors.
Inductance
(
μ
H)
Max DC
Current (A)
DCR
(
Ω
)
0.072
0.105
0.170
0.80
0.20
0.27
0.122
0.175
0.122
Size (mm)
LxWxH
Manufacturer
Part Number
Type
Sumida
Sumida
Sumida
MuRata
MuRata
Coilcraft
Coiltronics
Coiltronics
Coiltronics
CDRH3D16-2R2
CDRH3D16-4R7
CDRH3D16-6R8
LQH2MCN4R7M02
LQH32CN4R7M23
LPO3310-472
SD3118-4R7
SD3118-6R8
SDRC10-4R7
2.2
4.7
6.8
4.7
4.7
4.7
4.7
6.8
4.7
1.20
0.90
0.73
0.40
0.45
0.80
0.98
0.82
1.30
3.8x3.8x1.8
3.8x3.8x1.8
3.8x3.8x1.8
2.0x1.6x0.95
2.5x3.2x2.0
3.2x3.2x1.0
3.1x3.1x1.85
3.1x3.1x1.85
5.7x4.4x1.0
Shielded
Shielded
Shielded
Non-Shielded
Non-Shielded
1mm
Shielded
Shielded
1mm Shielded
Adjustable Version
(0.6V device)
R2 = 59k
Ω
R2 = 221k
Ω
1
V
OUT
(V)
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.8
1.85
2.0
2.5
3.3
Fixed Version
R1 (k
Ω
)
19.6
29.4
39.2
49.9
59.0
68.1
78.7
88.7
118
124
137
187
267
R1 (k
Ω
)
75.0
113
150
187
221
261
301
332
442
464
523
715
1000
L1 (
μ
H)
2.2
2.2
2.2
2.2
2.2
2.2
4.7
4.7
4.7
4.7
6.8
6.8
6.8
R2, R4 Not Used
V
OUT
(V)
0.6-3.3V
R1 (k
Ω
)
0
L1 (
μ
H)
4.7
AAT1146
Fast Transient 400mA Step-Down Converter
18
1146.2006.04.1.3
1. For reduced quiescent current, R2 and R4 = 221k
Ω
.
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