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TLV62569DBVR应用

Other Parts Discussed in Thread: TLV62569, TPS7A7001

你好,之前在使用TPS7A7001过程中发现接入10欧姆阻性负载时,输入输出感觉直通了,输入多少输出也是多少,不受FB控制了,现在改用TLV62569测试现象也是一样的,具体的电路如上图所示,空载情况下输出电压正常,输入保持在5V,接上10欧负载后,输出最大就4.2了输入也被拉低到4.2了,测试了下,感觉输入输出直通了。麻烦看下是什么原因,联系电话15967147055,谢谢!