HP Compaq CQ40 laptop always supply (3v-5v always) System If CQ40 laptop has good B+ main supply which necessary for system to turn on always supplies( 3VL and 5VL ). Always supply is to maintain system in ready state before pressing power button.TPS51125 is used in CQ40 for standby supply regulation. Note: Check B+ and Charging supply Articles for Details LDO or Standby section In Compaq CQ40 B+(18.5v) supply apply to pin16 of tps51125 It receive power supply for ic’s LDO (3.3v and 5v) Read more...
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