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TPS54340负15V电压输出，发热太大。

Richard Hua
Prodigy 21 points
Other Parts Discussed in Thread: TPS54340

使用TPS54340芯片做负电压输出（-15V），芯片、电感、肖特基二极管等元件发热量都很大？是因为负电源电压太大了?请专业人员帮忙提点建议。万分感谢。