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tps55340的boost电路



芯片带较轻负载时芯片正常工作,负载增大后,升压输出的电压值回逐渐下降,该怎么解决这个问题呢?电路是按照datasheet里给的原理图设计的,10V升15V电路,希望有大神帮助一下,谢谢!