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USB2534 データシート(PDF) 22 Page - SMSC Corporation

部品番号 USB2534
部品情報  USB 2.0 Hi-Speed 4-Port Hub Controller
PDF  62 Pages
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メーカー  SMSC [SMSC Corporation]
ホームページ  http://www.smsc.com
Logo SMSC - SMSC Corporation

USB2534 データシート(HTML) 22 Page - SMSC Corporation

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USB 2.0 Hi-Speed 4-Port Hub Controller
Datasheet
Revision 1.0 (06-17-13)
22
SMSC USB2534
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 USB2534.
Figure 4.1 Power Connections
3.3V Regulator
(Bypass)
(IN)
(OUT)
VDDA33
+3.3V
Supply
1.2V
Core Logic
3.3V I/O
USB2534
Single Supply Application
1.2V Regulator
(IN)
(OUT)
3.3V Internal
Logic
VDDA33
VDDA33
VDDCR12
1.0uF
VSS
VDD33
(2x)



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