【选型】洺太降压DCDC SK6693可兼容SY8113，助力机顶盒设计

时间： 2022-03-02 来源：世强

技术问答

在机顶盒产品设计中，一级电源一般需要将DC12V转5V给后级供电，市面上很多厂家会选择Silergy的SY8113。随着近两年芯片市场供货紧张问题日益突出，本文推荐上海洺太电子一款降压DCDC SK6693，为用户在选型时提供备选方案。

如下为两者主要电性能参数对比：

图1： SK6693与SY8113主要电性能参数对比

1、通过上述对比可知两者电性能参数基本一致，除上述电性能外，SK6693和SY8113均内置多种保护方式，如过流、过温保护等，为芯片可靠性提供保障；

2、SK6693和SY8113封装均为SOT23-6，并且引脚定义顺序完全相同，在进行实际设计时，可直接兼容互换，大大缩短研发验证周期。

如下图2为两者封装pin脚定义和典型应用电路对比：

图2：SK6693和SY8113封装pin脚定义和典型应用电路对比

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