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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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L9779WD 数据表(PDF) 47 Page - STMicroelectronics |
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L9779WD 数据表(HTML) 47 Page - STMicroelectronics |
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47 / 170 page  DocID027452 Rev 5 47/170 L9779WD Functional description 169 V3V3 IV3V3_MAX Output current limitation V3V3 V3V3 = 3 V VB = 6-18 V 200 - 500 mA Vline_3 Line regulation voltage IV3V3 = 5-100 mA 6V < VB < 18 V -- 25 mV Vload_3 Load regulation voltage IV3V3 = 5-100 mA 6V < VB < 18 V -- 25 mV V3V3Drift Total output 3V3 voltage drift Cout = 4.7 µF (parameter validated by reliability test) -- 100 mV SVRV3V3 Supply voltage 3.3 V rejection Cout = 4.7 µF; 4 Vpp, VB mean 9 V, f = 20 kHz 40 - - dB Vdrop_out - VDD5 = 3.3 V; IV3V3 =100 mA - - 200 mV V3V3_OS Max overshoot at switch on -- - 3.45 V - Max overshoot exiting from cranking*1 Not tested, it is guaranteed by design - - 3.45 V TD_Start_V3V 3 Delay between VDD5> VDD_UV_high and V3V3 switch on Tested by scan - - 1 ms Table 16. Linear 3.3 V regulator electrical characteristics (continued) Pin Symbol Parameter Test condition Min Typ Max Unit |
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