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“集成电路LD3985M25R”参数说明
| 结构形式： | NPN | 结构工艺： | BiCMOS |
| 安装方式： | 贴片 | 材料： | 硅管 |
| 封装形式： | 塑料封装 | 工作状态： | 饱和导通 |
| 型号： | LD3985M25R | 规格： | LD3985M25R |
| 商标： | ST | 包装： | 原装正品 |
| 销售方式： | 现货 | ROHS： | YES |
“集成电路LD3985M25R”详细介绍
Features■Inputvoltagefrom2.5Vto6V■StablewithlowESRceramiccapacitors■Ultralowdropoutvoltage(100mVtyp.at150mAload,0.4mVtyp.at1mAload)■Verylowquiescentcurrent(85μAtyp.atnoload,170μAtyp.at150mAload;max1.5μAinOFFmode)■Guaranteedoutputcurrentupto150mA■Widerangeofoutputvoltage:1.22V;1.8V;2.5V;2.6V;2.7V;2.8V;2.9V;3V;3.3V;4.7V■Fastturn-ontime:typ.200μs[CO=1μF,CBYP=10nFandIO=1mA]■Logic-controlledelectronicshutdown■Internalcurrentandthermallimit■Outputlownoisevoltage30μVRMSover10Hzto100KHz■S.V.R.of60dBat1KHz,50dBat10KHz■Temperaturerange:-40°Cto125°CDescriptionTheLD3985providesupto150mA,from2.5Vto6Vinputvoltage.Theultralowdrop-voltage,lowquiescentcurrentandlownoisemakeitsuitableforlowpowerapplicationsandinbatterypoweredsystems.Regulatorgroundcurrentincreasesonlyslightlyindropout,furtherprolongingthebatterylife.Powersupplyrejectionisbetterthan60dBatlowfrequenciesandstartstorolloffat10KHz.Highpowersupplyrejectionismaintaineddowntolowinputvoltagelevelscommontobatteryoperatedcircuits.ShutdownLogicControlfunctionisavailable,thismeansthatwhenthedeviceisusedaslocalregulator,itispossibletoputapartoftheboardinstandby,decreasingthetotalpowerconsumption.TheLD3985isdesignedtoworkwithlowESRceramiccapacitors.Typicalapplicationsareinmobilephoneandsimilarbatterypoweredwirelesssystems.
