參數(shù)資料
型號： AAT1141
廠商： Advanced Analogic Technologies, Inc.
英文描述： Fast Transient 600mA Step-Down Converter
中文描述： 快速的瞬時600mA降壓轉換器
文件頁數(shù)： 18/19頁
文件大小： 951K
代理商： AAT1141
AAT1141
Fast Transient 600mA Step-Down Converter
SwitchReg
TM
PRODUCT DATASHEET
18
1141.2007.12.1.3
w w w . a n a l o g i c t e c h . c o m
Adjustable Version
(0.6V device)
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
V
OUT
(V)
0.6-3.3V
R2 = 59k
Ω
R1 (k
Ω
)
19.6
29.4
39.2
49.9
59.0
68.1
78.7
88.7
118
124
137
187
267
R2 = 316k
Ω
1
R1 (k
Ω
)
105
158
210
267
316
365
422
475
634
732
1000
1270
1430
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 Not Used
R1 (k
Ω
)
0
L1 (
μ
H)
4.7
Table 3: Evaluation Board Component Values.
Manufacturer
Sumida
Sumida
Sumida
Part Number
CDRH3D16-2R2
CDRH3D16-4R7
CDRH3D16-6R8
Inductance (
μ
H)
2.2
4.7
6.8
2.2
4.7
6.8
4.7
4.7
4.7
4.7
6.8
4.7
Max DC
Current (A)
1.20
0.90
0.73
1.5
1.0
0.85
0.40
0.45
0.80
0.98
0.82
1.30
DCR (
Ω
)
0.072
0.105
0.170
75
135
170
0.80
0.20
0.27
0.122
0.175
0.122
Size (mm)
LxWxH
3.8x3.8x1.8
3.8x3.8x1.8
3.8x3.8x1.8
Type
Shielded
Shielded
Shielded
Sumida
CDRH2D14
3.2x3.2x1.55
Shielded
Murata
Murata
Coilcraft
Coiltronics
Coiltronics
Coiltronics
LQH2MCN4R7M02
LQH32CN4R7M23
LPO3310-472
SD3118-4R7
SD3118-6R8
SDRC10-4R7
2.0x1.6x0.95
2.5x3.2x2.0
3.2x3.2x1.0
3.1x3.1x1.85
3.1x3.1x1.85
5.7x4.4x1.0
Non-Shielded
Non-Shielded
1mm
Shielded
Shielded
1mm Shielded
Table 4: Typical Surface Mount Inductors.
Manufacturer
Murata
Murata
Murata
Part Number
GRM219R61A475KE19
GRM21BR60J106KE19
GRM21BR60J226ME39
Value
4.7
μ
F
10
μ
F
22
μ
F
Voltage
10V
6.3V
6.3V
Temp. Co.
X5R
X5R
X5R
Case
0805
0805
0805
Table 5: Surface Mount Capacitors.
1. For reduced quiescent current, R2 = 316k
Ω
.
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