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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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SC508 데이터시트(PDF) 29 Page - Semtech Corporation |
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SC508 데이터시트(HTML) 29 Page - Semtech Corporation |
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29 / 32 page  SC508/SC508A 29 Applications Information (continued) Place the R TON resistor near the TON pin. Route R TON to the TON pin and to AGND using short traces and avoid all switching signals. Bypass Capacitors The device requires bypass capacitors for the following pins. VDDA pin with respect to AGND. This 0.1μF minimum capacitor must be placed and routed close to the IC pins, on the same layer as the IC. This capacitor also functions as bypass for the LDO output, since the VDDA and VLDO pins are adjacent. VDDP with respect to PGND. This 1μF minimum capacitor must be placed and routed close to the IC pins and on the same layer as the IC. BST pin with respect to LX. This 0.1μF minimum capacitor must be placed near the IC, on either side of the PCB. Use short traces for the routing between the capacitor and the IC. VIN pin with respect to AGND. This 0.1μF minimum capacitor must be placed and routed close to the IC pins. This capacitor provides noise filtering for the input to the internal LDO. • • • • • |
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