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

DATA SHEET
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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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201997A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 28, 2012