最近做了一个DCTODC,12V-5.3V,4A的电源,用TPS51117,但在调试时发现要在EN-PSV脚外加一个振荡,驱动才会有波形,请问TPS51117是不是非要外加一个振荡才能工作呢?请专家解答一下。
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最近做了一个DCTODC,12V-5.3V,4A的电源,用TPS51117,但在调试时发现要在EN-PSV脚外加一个振荡,驱动才会有波形,请问TPS51117是不是非要外加一个振荡才能工作呢?请专家解答一下。