www.德州仪器.com
TYPICALOPERATINGCHARACTERISTICS
LM2575
1-asimplestep-downswitchingvoltageregulator
SLVS569D–JANUARY2005–REVISEDJULY2005
T
一个
=25
°
c(unlessotherwisenoted)
GRAPHPREVIEWS
figure2.normalizedoutputvoltage
figure3.lineregulation
figure4.dropoutvoltage
figure5.currentlimit
figure6.quiescentcurrent
figure7.standbyquiescentcurrent
figure9.quiescentcurrentvsdutycycle
figure0.oscillatorfrequency
figure10.switchsaturationvoltage
figure11.效率
figure12.minimumoperatingvoltage(adjustableversion)
figure13.feedbackvoltagevsdutycycle
figure14.feedbackpincurrent(adjustableversion)
figure15.switchingwaveforms
figure16.loadtransientresponse
6