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第5章 正电压三端固定集成稳压器-lm78XX.pdf

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LM340,LM340A,LM7805,LM7812,LM7815

SNOSBT0L–FEBRUARY2000–REVISEDSEPTEMBER2016

LM340,LM340AandLM7805FamilyWideVIN1.5-AFixedVoltageRegulators

1Features3Description

TheLM340andLM7805Familymonolithic3-terminal

1•OutputCurrentupto1.5A

positivevoltageregulatorsemployinternalcurrent-

•AvailableinFixed5-V,12-V,and15-VOptions

limiting,thermalshutdownandsafe-area

•OutputVoltageTolerancesof±2%atTJ=25°Ccompensation,makingthemessentiallyindestructible.

(LM340A)Ifadequateheatsinkingisprovided,theycandeliver

•LineRegulationof0.01%/Vofat1-ALoadover1.5-Aoutputcurrent.Theyareintendedasfixed

(LM340A)voltageregulatorsinawiderangeofapplications

includinglocal(on-card)regulationforeli

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