AAT1161 Datasheet, PDF (14/18 Pages) Advanced Analogic Technologies – 13.2V Input, 3A Step-Down Converter

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PRODUCT DATASHEET
AAT1161
13.2V Input, 3A Step-Down Converter
TP3 ^VIN
VIN
TB2
VIN
TB3
GND
TP5
GND
C7
22µF
R3
10
C8
0.1µF
JP1
R1
4.75K
C1
0.1µF
EN
R2
D1
Schottky
NP
DGND
U1
AAT1161
6
10
11
EN
IN
IN
LX
LX
FB
COMP
9
8
1
2
13 _AIN
AGND ³
4
12
DGND
PGND
N/C ⁷
5 _DGND
LDO ¹⁴
EP
TP4
LDO
C10
0.1µF
TP1
LX
L1
3.3µH
C6
150pF
NP
R5
51.0K
C9
150pF
C2
100pF
R4
43.2K
R6
5.90K
C3
22µF
DGND PGND
AGND
Note: Connect GND, DGND, PGND, and AGND at IC
C2 - Increase C2 to reduce overshoot
PGND
VOUT
TP2
VOUT
TB1
C4
22µF
VOUT
C5
22µF
TB4
GND
TP7
GND
Figure 2: AAT1161 Evaluation Board Schematic.
Figure 3: AAT1161 Evaluation Board
Top Side Layout.
Figure 4: AAT1161 Evaluation Board
Bottom Side Layout.
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1161.2008.03.1.0