Datenblatt-Suchmaschine für elektronische Bauteile |
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ACE705130BM+H Datenblatt(PDF) 8 Page - ACE Technology Co., LTD. |
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ACE705130BM+H Datenblatt(HTML) 8 Page - ACE Technology Co., LTD. |
8 / 14 page ACE705 High efficiency, Low supply current, step-up DC/DC Controller VER 1.4 8 (5)Vout~GND filter Capacitor Because the chip ’s switch current flows from Vout pin, then through the chip into GND pin. Therefore if the output capacitor ’s two pins were not very near the chip’s Vout pin and GND pin, Vout ‘s stable would be affected. User will found that the output voltage will drop when load grows up if the output capacitor ’s two pin is not very near the chip ’s Vout pin and GND pin. In this condition, 1nF ceramic capacitor is recommended at very near the chip ’s Vout pin and GND pin. So in all ACE705 application, two capacitors are needed to obtain stable output voltage. The 100 μF tantalum output capacitor is recommended to stable output voltage nearby load. The 1nF Vout pin to GND pin ceramic filter capacitor is recommended to stable chip ’s sense voltage. Test Circuits (1) Output voltage test circuit ACE705 Figure 3 (2) Quiescent current test circuit ACE705 Figure 4 (3) Input Current (no load) test circuit ACE705 Figure 5 |
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