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RT9641BGS Datasheet(PDF) 3 Page - Richtek Technology Corporation |
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RT9641BGS Datasheet(HTML) 3 Page - Richtek Technology Corporation |
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3 / 11 page  RT9641A/B DS9641A/B-11 March 2007 www.richtek.com 3 Function Block Diagram Simplified Power System Diagram Linear Controller Linear Controller Control Logic RT9641A/B Q1 V MEM Q2 Q3 EN3VDL EN5VLD S5 S3 SHUTDOWN FAULT 3.3V DUAL 3.3V IN 5V SB 5V IN 12V IN 5V DUAL Q4 Q5 Monitor and Control 5VSB POR Temperature Monitor (TMON) + 1.265V + - + - + - + - 5VSB To 12V EA2 To UV Detector GND EN5VDL S5 S3 EN3VDL 3V3DL EA4 3V3DLSB UV Detector MEM Voltage Select COMP + 40uA 0.2V 12V 12V Bias 12V Monitor 10.5V/9.5V + 5uF UA Compartor 5VDL VSEN2 DRV2 5VDLSB DLA SS FAULT/MSEL + - 5V 3.75V Enable 5VDLSB at S0 Mode |
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