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TPSM53602: 输出异常

Part Number: TPSM53602


使用TPSM53602将12V转成3.3V和5V,两个片子都出现第一次上电输出电压正常带负载后输出电压变低,断开负载后电压比正常电压略低然后电压在一个小范围开始波动。 这是原理图

 这个是PCB