AAT1150_06 Datasheet, PDF (13/17 Pages) Advanced Analogic Technologies – 1MHz 1A Step-Down DC/DC Converter

AAT1150
1MHz 1A Step-Down DC/DC Converter
Figure 4: AAT1150 Evaluation
Board Layout Top Layer.
Figure 5: AAT1150 Evaluation
Board Layout Bottom Layer.
VIN+ 3.3V
C1
10μF
R1 100
R2
EN
100k
C7
0.1μF
AAT1150-1.0
VP
FB
VCC
EN
LX
SGND PGND
R3
2.55k 1%
VO + 1.25V 1A
R4
10k 1%
L1
LX _2.7μH
C2, C3, C4
3x 22μF
6.3V
V-
C1 Murata 10μF 6.3V X5R GRM42-6X 5R106K6.3
C2, C3, C4 MuRata 22μF 6.3V GRM21BR60J226ME39L X5R 0805
L1 Sumida CDRH4D28-2R7μH
Figure 6: 3.3V to 1.25V Converter (Adjustable Output).
1150.2006.09.1.5
13