双通道、降压型稳压器LT3509EDE芯片专家

featuresapplicationsdescriptiondual 36V，700mastep下来regulatorthe lt®3509是双，电流模式，switchingregulator步下，以及内部电源开关可输出电流每ofproviding 700ma。这acompact稳压器提供解决方案和鲁棒的多轨系统在harshenvironments。它incorporates几种过电压保护featuresincluding锁定和逐周期currentlimit。提供额外的保护，热关机。The Loop补偿components and the Boost diodesare集成芯片。开关频率is set by asingle外部电阻器。是alsopossible外部同步。高开关频率的最大allowsthe电感器和陶瓷电容器用of small for lowripple。恒定频率操作above the AM bandavoids干扰无线电接收，making the lt3509well suited for汽车应用。每一个独立的regulatorhas关机和软启动控制引脚。当两个转换器是动力下，the commoncircuitry enters低电流关机state.3.3v和5V输出convertern两步双开关调节器与唐氏700ma internalpower switchesn宽3.6v to 36V操作朗让过电压保护电路通过锁定60vsupply transientsn短路robustn低低压差voltage−95 %最大可调300khz to 2.2mhz召唤Cyclen开关frequencysynchronizable over the full朗让使用小电感和陶瓷capacitorsn集成升压diodesn内部补偿热增强铅（14 4 mm×3mm DFN封装类型）和16铅packagesn汽车electronicsn实业controlsn华尔转变规制网络devicesn CPU，DSP，FPGA power3509金ta01alt3509gndda1fb1run / ss1syncda2fb2run / ss2rtbdvinboost2boost1sw2sw110μhfsw = 700khz0.1μf0.1μf6.5v to 36V（transientto额定电流）2.2μf6.8μh3.3v700ma5v700ma10μf10.2k31.6k53.6kmbrm140mbrm1401nf22μf10.2k60.4k1nfload电流（A）0.07075800.73509 ta01b606550550.10.20.690850.50.40.3vout = = = = 3.3vvout 5vvin 12vfsw–700khzefficiencyl，LT，LTC和LTM是注册商标的线性科技有限公司。