72V_60V降转5V500MA_AH7550_非隔离降压芯片 ¥0.01 (AH8100),5V替用阻容降压方案,SOT23-3 ¥0.01 AH7550,60V48V降转5V12V400MA,POE通信控制板IC ¥0.01 AHD480,POE电源60V48V36V降转3.3V5V500MA.通信设备芯片 ¥0.01 AH8653-200MA小体积非隔离AC-DC降压芯片 ¥0.01 PM1132|AC220V降转5V150MA非隔离芯片IC,MCU供电方案 ¥0.08