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參數(shù)資料
| 型號： | MCP1603-ADJI/MC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.5 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 2 X 3 MM, 0.90 MM HEIGHT, PLASTIC, DFN-8 |
| 文件頁數(shù)： | 8/26頁 |
| 文件大小： | 758K |
| 代理商： | MCP1603-ADJI/MC |
MCP1603
DS22042A-page 16
2007 Microchip Technology Inc.
5.8
PCB Layout Information
Good printed circuit board layout techniques are
important to any switching circuitry and switching
power supplies are no different. When wiring the high
current paths, short and wide traces should be used.
This high current path is shown with red connections in
Figure 5-1. The current in this path is switching.
Therefore, it is important that the components along the
high current path should be placed as close as possible
to the MCP1603 to minimize the loop area.
The feedback resistors and feedback signal should be
routed away from the switching node and this switching
current loop. When possible ground planes and traces
should be used to help shield the feedback signal and
minimize noise and magnetic interference.
FIGURE 5-1:
PCB High Current Path.
VIN
SHDN
GND
VFB
LX
VIN
2.7V To 4.5V
VOUT
1.8V @ 500 mA
COUT
4.7 F
CIN
4.7 F
L1
4.7 H
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