MCP1642B-33I/MS Conv DC-DC 0.65V to 5.5V Synchronous Step Up Single-Out 3.3V 0.3A 8-Pin MSOP Tube
LM2575YWM-TR 开关调节器 Conv DC-DC 4V to 40V Step Down Single-Out 1.23V to 37V 1A 24-Pin SOIC W T/R
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