78L12 KIA | Alldatasheet

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Technical content

1.Description TheKIA78L12ismonolithicfixedvoltageregulatorintegratedcircuit.Itissuitableforapplications thatrequiredsupplycurrentupto100mA. 2.Features n Output current up to 100mA n No external part needed n Thermal overload shutdown protection n Short circuit current limiting n SOT89 package 3.Applications n Battery-poweredcircuitry n Postregulatorforswitchingpowersupply 4. Pinninginformation SOT-89Front View 1of3 Rev1.1NOV2015 Pin Description

1 VOUT

2 GND

3 VIN

  1. Maximumratings (Ta=25°C,unlessotherwisenotes) Parameter Symbol Rating Units Inputvoltage VIN 35 V Powerdissipation PD 500 mW Junctiontemperature TJ -20~+125 °C Operatingtemperature TOPR -20~+85 °C Storagetemperature TSTG -65~+150 °C 6. Electricalcharacteristics (VIN=19V,IOUT=40mA,CIN=0.33uF,COUT=0.1uF,TJ=25°C,unlessotherwisenotes) Note1:Themaximumsteadystateusableoutputcurrentisdependentoninputvoltage,heatsinking,lead lengthofthepackageandcopperpattenofPCB. 2of3 Rev1.1NOV2015 Parameter Symbol Condition Min Typ Max Unit Outputvoltage VOUT 11.52 12 12.48 V 14.5V<VIN<27V 1.0mA<IOUT<40mA 11.4 12 12.6 V 1.0mA<IOUT<70mA 11.16 12 12.84 V Lineregulation Regline 14.5V<VIN<27V - 120 250 mV 16V<VIN<27V - 100 200 mV Loadregulation Regload 1.0mA<IOUT<100mA - 20 100 mV 1.0mA<IOUT<40mA - 10 50 mV Quiescentcurrent IQ - 3.2 6.5 mA Quiescentcurrentchange ΔIQ 16V<VIN<27V - 0.15 1.5 mA 1.0mA<IOUT<40mA - 0.08 0.1 mA Outputnoisevoltage VON 10Hz<f<100KHz - 80 - uVrm Ripplerejectionratio RR 15V<VIN<25V,f=120Hz 36 41 - dB Dropoutvoltage VD - 1.7 - V

7.Appllcationcircuits Note1:Theinputvoltagemustremaintypically1.7Vabovetheoutputvoltage. Note2:Bypasscapacitorsarerecommendedforoptimumstabilityandtransientreponseand shouldbelocatedascloseaspossibletotheregulators. 8. Packageoutline Dim min max A 1.40 1.60 B 0.40 0.56 B1 0.35 0.48 C 0.35 0.44 D 4.40 4.60 D1 1.35 1.83 e 1.50BSC e1 3.00BSC E 2.29 2.60 H 3.75 4.25 L 0.80 1.20 3of3 Rev1.1NOV2015