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LP5900: LDO(LP5900)并联二极管的问题

Part Number: LP5900


您好,选择TI公司的LP5900,为了防止下电过程中LP5900的输出端电压下降速度慢于输入端(输出端有100uF电容),导致电流反向灌入,通常并联一个二极管,阳极接输出端,阴极接输入端。想知道这个二极管选择开关二极管,稳压二极管,还是肖特基二极管呢?

关注哪些指标呢?反向电压大于输入电压,正向电流多大合适呢,需要额定功率是多少?

实际工作情况:输入端5V,输出端1.2V~3.3V,输出端电容100uF,LP5900最大输出电流150mA

谢谢!