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HM1480 데이터시트(HTML) 9 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

부품명 HM1480
상세내용  Input range synchronous buck controller
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제조사  HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]
홈페이지  http://www.hmsemi.com/
Logo HMSEMI - Shenzhen Huazhimei Semiconductor Co., Ltd

HM1480 데이터시트(HTML) 9 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

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9
Board Layout Suggestions
When laying out the printed circuit board, the following checklist should be used to ensure proper
operation of the
HM1480. Check the following in your layout.
1.
The power traces, consisting of the GND trace, the SW trace and the VIN trace should be kept
short, direct and wide.
2.
Put the input capacitor as close as possible to the device pins (VIN and GND).
3.
SW node is with high frequency voltage swing and should be kept small area. Keep analog
components away from SW node to prevent stray capacitive noise pick-up.
4.
Connect all analog grounds to a command node and then connect the command node to the power
ground behind the output capacitors.


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