參數(shù)資料
型號: AAT1149
廠商: Advanced Analog Technology,lnc.
英文描述: 3MHz Fast Transient 400mA Step-Down Converter
中文描述: 3MHz的快速瞬態(tài)400mA的降壓轉(zhuǎn)換器
文件頁數(shù): 18/20頁
文件大小: 1800K
代理商: AAT1149
AAT1149
3MHz Fast Transient
400mA Step-Down Converter
18
1149.2006.11.1.0
Table 3: Evaluation Board Component Values.
Table 4: Typical Surface Mount Inductors.
Part Number/
Type
Inductance
(
μ
H)
Rated
DCR
(
Ω
)
110
180
300
200
250
350
80
130
97.5
110
131
150
195
300
400
480
600
31
54
75
104
116
139
Size (mm)
LxWxH
Manufacturer
Current (mA)
0.77
1.0
1.5
1.5
2.2
3.3
1.0
2.2
1.2
1.5
1.8
2.5
3.0
1.0
1.5
2.2
3.3
0.68
0.82
1.2
1.5
2.2
3.3
660
520
410
600
550
450
1000
890
590
520
480
440
400
485
445
425
375
980
830
720
630
510
430
0603
BRC1608
(H
MAX
= 1mm)
Taiyo Yuden
0805
BRL2012
(H
MAX
= 1mm)
CBC2518
Wire Wound Chip
2.5x1.8x1.8
Sumida
CDRH2D09
Shielded
3.2x3.2x1.0
Murata
LQH2MCN4R7M02
Unshielded
2.0x1.6x0.95
Coiltronics
SD3118
Shielded
3.15x3.15x1.2
Adjustable Version
(0.6V device)
R2 = 59k
Ω
R2 = 221k
Ω
1
V
OUT
(V)
1.0
1.2
1.5
1.8
2.5
3.3
R1 (k
Ω
)
39.2
59.0
88.7
118
187
267
R1 (k
Ω
)
150
221
332
442
715
1000
L1 (
μ
H)
1.0
1.2
1.5
1.8
2.2
3.3
1. For reduced quiescent current, R2 = 221k
Ω
.
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