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CC2652R: MCU内置DC-DC稳压外加外置稳压器

Part Number: CC2652R
Other Parts Discussed in Thread: CC1352P

各位专家好:

因为外设供电原因想保持GPIO有不低于3V电压输出, 所以供电选择了内置DC-DC稳压, 而电源为4.2V锂电池,

问题是如果在内置DC-DC稳压与锂电池之间, 加一个外置DCDC 3.3v or LDO 3.8v稳压, 这是否算一个合理的选择, 会不会影响MCU稳定?

Thanks

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