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TPS43060上电电流过大

Other Parts Discussed in Thread: TPS43060

我使用TPS43060设计24升压到48V,后级电路功耗mA级,给TPS43060供电电流很大,几A,我把自举电容去掉后,上电电流回到mA级别,而且能正常启动,这是为何?