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求推荐几款Boost电路芯片

Other Parts Discussed in Thread: TPS40210

求推荐这样一个BOOST电路。(不能外加电源)输入电压范围是17~170V,输出28V。由于这个范围太大,想进行两级变换,前级BOOST升压,将17~34V升到34V,后级将34~170降为28V。前端设计一个BOOST电路,当输入为17~34V时通过BOOST进行升压;当输入为34~170V时BOOST只作滤波器使用。

如上要求,不知道WEBENCH可以进行设计BOOST电路吗?