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AS3722 数据表(PDF) 26 Page - ams-OSRAM AG |
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AS3722 数据表(HTML) 26 Page - ams-OSRAM AG |
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26 / 199 page ![]() ams Datasheet Page 25 [v1-01] 2015-Sep-07 Document Feedback AS3722 − Detailed Descriptions- Power Management Functions Figure 15: DC/DC Buck Converter Normal Operation Figure 16: DC/DC Buck Converter SD4+SD5 (2-3A) Mode DC/DC Buck Normal Operation: Shows the internal DC/DC buck converters in normal operation independent from each other; no slave mode set DC/DC Buck Slave Operation: Shows the internal DC/DC buck converters with SD5 operating as slave of SD4 to increase the output current. (sd5_slave = 1) VSUP_SD2 LX_SD2 FB_SD2 VSS_SD2 1uH 2.2uF 33uF VSD2 12.5mV steps VSUP_SD3 LX_SD3 FB_SD3 PVSS_SD3 1uH 22uF VSD3 12.5mV steps VSUP_SD4 LX_SD4 FB_SD4 VSS_SD4 1uH 10uF VSD4 12.5mV steps 2.2uF 2.2uF VSUP_SD5 LX_SD5 FB_SD5 VSS_SD5 1uH 10uF VSD5 12.5mV steps 2.2uF DCDC2 0.6V-3.3V 3-4A DCDC3 0.6V-3.3V 1.5-2A DCDC4 0.6V-3.3V 1-1.5A DCDC5 0.6V-3.3V 1-1.5A VSUP_SD4 LX_SD4 FB_SD4 VSS_SD4 1uH 22uF VSD4 (2-3A) 12.5mV steps 4.7uF VSUP_SD5 LX_SD5 FB_SD5 VSS_SD5 VSUP_SD2 LX_SD2 FB_SD2 VSS_SD2 1uH 2.2uF 33uF VSD2 12.5mV steps VSUP_SD3 LX_SD3 FB_SD3 PVSS_SD3 1uH 22uF VSD3 12.5mV steps 2.2uF DCDC2 0.6V-3.3V 3-4A DCDC3 0.6V-3.3V 1.5-2A DCDC4 0.6V-3.3V 1-1.5A DCDC5 0.6V-3.3V 1-1.5A |
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