是否可以用BUCK芯片TPS54531,设计一个ZETA电路? TPS54531手册上关于PH脚的输出电压极限值是-0.6~3V。ZETA电路工作时,PH脚的电压可能为负的输出电压,如-5V,这样是否会损坏芯片?
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