This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS54062输出不正常

Other Parts Discussed in Thread: TPS54062

我用TPS54062做了个DC/DC,输入27V~40V,输出4V,4V功耗大约为6mA,C87和C89为2个10uF电容,L2为1000uH。但在实际调试中,有大约三分之一的芯片无输出(0.7V),示波器看无震荡波形,有的芯片输出高电压(比输入低2V),换芯片基本能好,请帮忙解决,多谢。