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C6657供电设计(12V改为3.3V)请教。

Other Parts Discussed in Thread: UCD9222

开发板电源UCD9222和UCD9242设计均为12V输入,我的板卡外界只提供3.3V直流输入,

看资料UCD9222和UCD9242不支持3.3V,该如何考虑电源方案。