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參數(shù)資料
| 型號(hào)： | AAT1112IWP-0.6-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | 1.5A, 1.4MHz Step-Down Converter |
| 中文描述： | 1.5A的，1.4MHz的降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 828K |
| 代理商： | AAT1112IWP-0.6-T1 |
AAT1112
1.5A, 1.4MHz Step-Down Converter
1112.2007.01.1.1
15
Figure 2: AAT1112 Evaluation Board
Top Side Layout.
Figure 3: AAT1112 Evaluation Board
Bottom Side Layout.
AnalogicTech
Off
GND
AAT1112
Enable
GND
Vout
LX
C2
GND
LL
SYNC
PWM
L1
Vin
R2
C3
C1
R3
U1
On
C4
AnalogicTech
Off
GND
AAT1112
Enable
GND
Vout
LX
C2
GND
LL
SYNC
PWM
L1
Vin
R2
C3
C1
R3
U1
On
Layout
The suggested PCB layout for the AAT1112 is
shown in Figures 2 and 3. The following guidelines
should be used to help ensure a proper layout.
1. The input capacitor (C1) should connect as close-
ly as possible to VP and PGND.
2. C2 and L1 should be connected as closely as
possible. The connection of L1 to the LX pin
should be as short as possible.
3. The feedback trace or FB pin should be sepa-
rate from any power trace and connect as
closely as possible to the load point. Sensing
along a high-current load trace will degrade DC
load regulation.
4. The resistance of the trace from the load return
to PGND should be kept to a minimum. This
will help to minimize any error in DC regulation
due to differences in the potential of the inter-
nal signal ground and the power ground.
5. Connect unused signal pins to ground to avoid
unwanted noise coupling.
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