AAT1151 Datasheet, PDF (11/16 Pages) Advanced Analogic Technologies – 850kHz 700mA Synchronous Buck DC/DC Converter

DATA SHEET
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.
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)
Figure 6: R3 vs. V_OUT for Adjustable Output
Figure 5: QFN Evaluation Board Bottom Side.
2.7V - 5.5V
10,11,12
R1 100
9
C1
10μF
R2
7
100k
5,6
C3
0.1μF
AAT1151-1.0
VP
FB ⁴
VCC
LX ^13,14,15
EN
SGND PGND ^1,2,3
R3 ^{VO+ 1.25V 0.7A}
2.55k 1%
L1
3.3μH
R4
10kΩ 1%
C2, C4
2x 22μF
GND
C1 Murata 10μF 6.3V X5R GRM42-6X5R106K6.3
C2, C4 Murata 22μF 6.3V GRM21BR60J226ME39L X5R 0805
L1 Sumida CDRH3D16-3R3 NC
Figure 7: Adjustable Output Schematic.
Using the AAT1151-1.0V.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
201991B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 18, 2013
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