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SC46208 bảng dữ liệu(PDF) 6 Page - Silan Microelectronics Joint-stock

tên linh kiện SC46208
Giải thích chi tiết về linh kiện  1.25MHz, 600mA, HIGH EFFICIENCY SYNCHRONOUS STEP-DOWN DC-DC CONVERTER
PDF  10 Pages
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nhà sản xuất  SILAN [Silan Microelectronics Joint-stock]
Trang chủ  http://www.silan.com.cn
Logo SILAN - Silan Microelectronics Joint-stock

SC46208 bảng dữ liệu(HTML) 6 Page - Silan Microelectronics Joint-stock

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SC46208
Setting The Output Voltage
For voltage adjustable version, SC46208 adjusts the output voltage through two serial resistors, refer to fig.
below. We can calculate the output voltage through the following equation:
)X0.6V
R2
R1
(1
VOUT
+
=
The selection of resistor R1, R2 should give attention to the quiescent power and external interfere. Higher
impedance reduces the quiescent current (I=0.6V/R2), and lower resistance gives better noise immunity, and is
less sensitive to interference, layout parasitics and FB node leakage current. A proper value of feed-forward
capacitor C1 can improve the noise immunity of the feedback loops, especially in an improper layout.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
REV:1.1
2008.09.10
Http://www.silan.com.cn
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