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TPS53355在轻载输出的时候频率不稳定

Other Parts Discussed in Thread: TPS53355

Dear All,

 TPS53355 12V3.3V,在測試輕載的ripple 時,發現ripple 出現大小波,输出频率不稳定,波形如附件,

請幫忙確認這種情況是否正常,會不會影響系統的穩定性.

  tps53355.zip