PRODUCT DATASHEET
AAT1218
TM
SwitchReg
1A, 1.2MHz Synchronous Boost Converter
Evaluation Board Schematic
LX
VOUT
VOUT
D1
PGND
C3
B230LA
22μF
U1
AAT1218-TDFN33-12
C4
100pF
Opt.
C2
L1 2.2μH
22μF
LX
1
12
LX
PGND
PGND
OUT
OUT
FB
VIN
2
3
11
10
N/C
VIN
EN
VIN
EN
R2
4
5
6
9
.
C1
R3
1M
8
7
R1
1.02M
N/C
GND
22μF
FB
576K VOUT = 3.3V
470K VOUT = 3.8V
324K VOUT = 5V
GND
EXP PAD
PGND
JP2
3
2
1
PGND
ENABLE
R10
0R
GND
GND
GND
PGND
Figure 2: AAT1218 Evaluation Board Schematic.
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1218.2008.10.1.1