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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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USB2533 Fiches technique(PDF) 21 Page - SMSC Corporation |
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USB2533 Fiches technique(HTML) 21 Page - SMSC Corporation |
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21 / 61 page  USB 2.0 Hi-Speed 3-Port Hub Controller Datasheet SMSC USB2533 21 Revision 1.0 (06-17-13) DATASHEET Chapter 4 Power Connections 4.1 Integrated Power Regulators The integrated 3.3V and 1.2V power regulators allow the device to be supplied via a single 3.3V external power supply. The regulators are controlled by RESET_N. When RESET_N is brought high, the 3.3V regulator will turn on. When RESET_N is brought low the 3.3V regulator will turn off. 4.2 Power Connection Diagrams Figure 4.1 illustrates the power connections for the USB2533. Figure 4.1 Power Connections 3.3V Regulator (Bypass) (IN) (OUT) VDDA33 +3.3V Supply 1.2V Core Logic 3.3V I/O USB2533 Single Supply Application 1.2V Regulator (IN) (OUT) 3.3V Internal Logic VDDA33 VDDA33 VDDCR12 1.0uF VSS VDD33 (2x) |
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