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.

tps2836和CSD86350构成开环同步buck电路发烫怎么回事,

Other Parts Discussed in Thread: TPS2836

MOS管输入电压为线性电源12V,5A,通过改变占空比0到0.96,使输出电压能在0V到接近12V联系调压,PWM频率为200K.。当负载采用22欧10瓦水泥电阻时可以实现这种功能0到12V可调,最大输出电流为0.5A;当负载采用15欧5瓦和10欧5瓦水泥电阻并联,改变占空比输出电压只能上升到5V,然后突然掉压0,MOSFET及驱动芯片烫手。请问这是什么原因造成的。