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TPS53355DQPR

       电池输入3-4V      输出1.4V  20A          芯片发热严重   用着用着就热保护了   电感0.47UH  用官网推荐的设计软件进行设计的   芯片VDD是5V    电压转换部分VIN  3-4V 电池    输出1.4V  20A       IC发热严重