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30V转5V电源

Other Parts Discussed in Thread: LM26001, LMR14006, LM5165, LM46000, LM46000-Q1

TI专家好!

      我的项目里需要一个30V转5V的电源,但电流很小,只有30mA,不超过50mA。由于所需电流甚小,我原先用电阻和5V1稳压二极管搭了个分立电路供电,但发现分立器件的离散性太大,转出来5V电源电压有差别,请问有没有适合这种电流量级的电源芯片。我之前看过LDO,感觉效率好低,看DCDC又觉得轻载时也会导致效率低。请问TI这里有没有相关方案的推荐,谢谢!