LM2574YN 开关调节器 Conv DC-DC 4V to 40V Step Down Single-Out 1.23V to 37V 0.5A 8-Pin PDIP Tube
LM2575WU-TR 开关稳压器 Conv DC-DC 4V to 40V Step Down Single-Out 1.23V to 37V 1A 6-Pin(5+Tab) TO-263 T/R
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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