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TPS543B20: TPS543B20RVFR输入电压12V,输出电压1.8V,输出最大电流25A,开关频率500KHZ,在利用电感公式计算后的电感值是816nH,可市面上找不到 超过700nH且额定电流满足30A的成品电感,我该做哪些优化?

Part Number: TPS543B20

1、TPS543B20RVFR输入电压12V,输出电压1.8V,输出最大电流25A,开关频率500KHZ,在利用电感公式计算后的电感值是816nH,可市面上找不到 超过700nH且额定电流满足30A的成品电感,我该做哪些优化?

2、是否可以提高开关频率?我们的设计要求是输入电压12V,输出电压1.8V,输出最大电流25A,输出纹波小于10mv,可否帮我计算一下多少开关频率,电感值,输出电容值能满足我们的要求?