你好,我们有个升压电源用了TPS63070 ,输入电压5V 输出电压5.8V。负
载700时可以正常启动。
整机再加上一个配件后无法直接启动,输出电压只有2.2V。
如果先开机再插上配件工作是正常的,整机电流在1.1A左右。
测量了下信号发现升压的开关没有动作,只有降压的开关有2.4M的信号,占空比为50%。
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