AAT1151 Просмотр технического описания (PDF) - Advanced Analogic Technologies
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AAT1151 Datasheet PDF : 16 Pages
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AAT1151
850kHz 700mA Synchronous
Buck DC/DC Converter
Figure 2: MSOP Evaluation
Board Top Layer.
Figure 3: MSOP Evaluation
Board Bottom Layer.
Figure 4: QFN Evaluation Board
Top Side.
Figure 5: QFN Evaluation Board
Bottom Side.
45
R4=10kΩ
40
35
30
25
20
15
10
5
0
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
Output Voltage (V)
2.7V - 5.5V
5
R1 100 4
C1
10μF
R2
3
100k
2
C3
0.1μF
AAT1151-1.0
VP
FB 1
VCC LX 7
EN
LX 6
GND PGND 8
R3 VO+ 1.25V 0.7A
2.55k 1%
L1
3.3μH
R4
10kΩ 1%
C2, C4
2x 22μF
V-
C1 Murata 10μF 6.3V X5R GRM42-6X5R106K6.3
C2, C4 MuRata 22μF 6.3V GRM21BR60J226ME39L X5R 0805
L1 Sumida CDRH3D16-3R3 NC
Figure 6: R3 vs. VOUT for Adjustable Output
Using the AAT1151-1.0V.
Figure 7: Adjustable Output Schematic.
1151.2007.01.1.6
11
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