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关于TL783C的发热问题



您好!最近做了一块板,电源模块采用TL783C,利用TL783C将输入电源转换为15V,15v再转换5V,最后为3.3V和1.8V,但是问题来了: 当整个系统只焊接了最小系统时,按理说这时候的功耗应该比较小,但是电源变换器TL783C却非常热,很烫手,我的电路都是按照datasheet上连接的,我真的不知这块板出什么问题了,还是这款芯片工作时就是很高温度的?希望您能提示我一下,谢谢!