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CS51313 bảng dữ liệu(PDF) 19 Page - Cherry Semiconductor Corporation

tên linh kiện CS51313
Giải thích chi tiết về linh kiện  Synchronous CPU Buck Controller Capable of Implementing Multiple Linear Regulators
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nhà sản xuất  CHERRY [Cherry Semiconductor Corporation]
Trang chủ  http://www.cherrycorp.com/
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CS51313 bảng dữ liệu(HTML) 19 Page - Cherry Semiconductor Corporation

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6) Keep the inductor switching node small by placing the
output inductor, switching and synchronous FETs close
together.
7) The MOSFET gate traces to the IC must be as short,
straight, and wide as possible.
8) Use fewer, but larger output capacitors, keep the capaci-
tors clustered, and use multiple layer traces with heavy
copper to keep the parasitic resistance low.
9) Place the switching MOSFET as close to the +5V input
capacitors as possible.
10) Place the output capacitors as close to the load
as possible.
11) Place the VFB,VOUT filter resistors (510Ω) in series with
the VFB and VOUT pins as close as possible to the pins.
12) Place the COFF and COMP capacitors as close as possi-
ble to the COFF and COMP pins.
13) Place the current limit filter capacitor between the VFB
and VOUT pins, as close as possible to the pins.
14) Connect the filter components of the following pins:
VFB, VOUT, COFF, and COMP to the Gnd pin with a single
trace, and connect this local Gnd trace to the output capaci-
tor Gnd.
15) The “Droop” Resistor (embedded PCB trace) has to be
wide enough to carry the full load current.
16) Place the VCC bypass capacitor as close as possible to
the IC.
Application Information: continued
19



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