AAT1162
12V, 1.5A Step-Down DC/DC Converter
Enable
1
J1
EP2
U1
AAT1162
VIN
VOUT
L1
R5 4.7k
LX
15
4
1
2
FB1 1.5A 330
EN
IN
LX
LX
FB
3.8ꢀH 6A
C10
100pF
5
3
9
10
R1
C9
IN
43.2k
0.1ꢀF
16V
N/C
AIN
COMP
R4
10
7
11
12
AGND
R3
C11
NP
C3
22ꢀF
C3
22ꢀF
C3
22ꢀF
N/C
51k
6
13
R2
5.9k
DGND
DGND
PGND
14
8
C1
22ꢀF
16V
C2
10ꢀF
16V
DGND
LDO
C7
270pF
16
LDO
DGND
C8
0.1ꢀF
16V
EP1
C6
1ꢀF
DGND
Note: Connect GND, DGND, and AGND at IC
FB1: Chip Ferrite Bead
C10: Increase C10 to reduce overshoot
Figure 2: AAT1162 Evaluation Board Schematic.
Figure 3: AAT1162 Evaluation Board
Component Side Layout.
Figure 4: AAT1162 Evaluation Board
Solder Side Layout.
14
1162.2007.09.1.2
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
