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咨询:TPS54340、54331哪种降压芯片可以支持加PWM控制输出



我手里有54426,54331,54340,56528等降压芯片,不知哪种可以用单片机输出的PWM控制输出电压?如果都不可以,能否帮忙找一款要求输出在3A以上,输入20V左右,输出可用PWM调整的性价比较高降压芯片,谢谢