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LM3670 Fiches technique(PDF) 16 Page - National Semiconductor (TI) |
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LM3670 Fiches technique(HTML) 16 Page - National Semiconductor (TI) |
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16 / 17 page ![]() Application Information (Continued) In mobile phones, for example, a common practice is to place the DC-DC converter on one corner of the board, arrange the CMOS digital circuitry around it (since this also generates noise), and then place sensitive preamplifiers and IF stages on the diagonally opposing corner. Often, the sensitive circuitry is shielded with a metal pan and power to it is post-regulated to reduce conducted noise, using low- dropout linear regulators. www.national.com 16 |
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