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关于TI电源芯片的替代方案(降成本设计)

Other Parts Discussed in Thread: TPS63700, TPS27081A, TLV1117, LP2951, TPS22918

你好:目前我司项目电源上使用了以下3款电源芯片:

1)TPS63700(input:5V; output:-10V);

2)TPS7A4901(input:12V; output:10V);

3)TPS27081A(电源开关  input:5V; output:5V);

目前我们想把成本进一步压缩以下,有如下问题,还请帮忙给予回复;

问题1):上述3款芯片,贵公司有无替代方案?

问题2):若有替代方案,成本具备优势吗? 能否具备pin to pin? 

以上问题,还请给予一些支持及选型指导。谢谢!