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基于TI的LM5122升压电源问题

Other Parts Discussed in Thread: LM5122

    采用LM5122做了一款升压电源,输入电压为12V,输出电压为24V,设计最大输出电流为4A。   

空载输出电压23.8V,纹波50mV。可是当我加上负载之后,问题出来了,负载2W一下没问题,超过2W,输出电压降为11V。请问可能是哪些方面的问题引起的?