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TPS74401: RFB取值范围咨询

Part Number: TPS74401

Hi all,

如下图所示,我想咨询一下该器件的R2取值范围为什么需要小于4.99k?是考虑到R1和R2会影响到内部的环路响应吗?

我遇到的问题是我想输出一个3V3的VOUT,如果R2取值小于4.99k无法选取到合适的电阻,请问我是否可以通过调整Cout、Cff,然后不去满足4.99k的要求,Ti有建议的设计吗?谢谢!

Best Regards.

Yuanyuan