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APW8821 датащи(PDF) 18 Page - Anpec Electronics Coropration

номер детали APW8821
подробное описание детали  Notebook PWM Controller with Differential Voltage Feedback
PDF  24 Pages
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производитель  ANPEC [Anpec Electronics Coropration]
домашняя страница  http://www.anpec.com.tw
Logo ANPEC - Anpec Electronics Coropration

APW8821 датащи(HTML) 18 Page - Anpec Electronics Coropration

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Copyright
© ANPEC Electronics Corp.
Rev. A.1 - Feb., 2011
APW8821
www.anpec.com.tw
18
= Locate the resistor-divider close to the FB pin to mini-
mize the high impedance trace. In addition, FB pin traces
can’t be close to the switching signal traces (UGATE,
LGATE/OCSET, BOOT, and PHASE).
= The input bulk capacitors should be close to the drain
of the high-side MOSFET, and the output bulk capacitors
should be close to the loads. The input capacitor’s ground
should be close to the grounds of the output capacitors
and low-side MOSFET.
Layout Consideration (Cont.)
= The R
OCSET resistance should be placed near the IC
as close as possible.
Figure 3.
Application Information (Cont.)
Close to IC
VCC
BOOT
PHASE
UGATE
LGATE/OCSET
VIN
VOUT
L
O
A
D
APW8821
ROCSET



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