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+15Vdc转-10V/2A和+15Vdc转-80V/0.5A DCDC选型

Other Parts Discussed in Thread: LM2576, TPS54240, TPS40200, UC2572, TPS5430, TPS5450, TPS40210, LMR14030, LM3481, TPS40211

请问+15Vdc转-10V/2A 最主推的PWM芯片型号是哪一颗?我看到很多型号都可以这样用,比如TPS54240、LM2576、TPS40200等。

请问+15Vdc转-80V/0.5A可以用哪个型号的PWM芯片来实现?我评估过UC2572,但是不知道这颗能不能输出-80V这么低的电压?

请问-10V转-80V属于buck还是boost?有哪个型号的PWM芯片可以实现?