Controller IC Chip - MAX1992 MAXIM1992 chip for laptop - Ολοκληρωμένο τσιπ φορητού υπολογιστή (Κωδ.1-CHIP0675) The MAX1992/MAX1993 pulse-width modulation (PWM)controllers  provide  high-efficiency,  excellent  transientresponse,  and  high  DC  output  accuracy.  The  devicesstep  down  high-voltage  batteries  to  generate  low-voltage CPU core or chipset/RAM supplies in notebookcomputers.Maxim’s  proprietary  Quick-PWM™  quick-response,  con-stant on-time PWM control scheme handles wideinput/output  voltage  ratios  with  ease  and  provides  100ns“instant-on” response to load transients, while maintaininga  relatively  constant  switching  frequency.  Efficiency  isenhanced  by  the  ability  to  drive  very  large  synchronous-rectifier  MOSFETs.  Current  sensing  to  ensure  reliableoverload  and  inductor  saturation  protection  is  availableusing an external current-sense resistor in series with theoutput.  Alternatively,  the  controller  can  sense  the  currentacross  the  

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