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Fixed voltage regulator(are external L and C necessary for device to work)

Richard Do
Prodigy 10 points
Other Parts Discussed in Thread: TPS62203

Hi all, I just have a simple questions. I am using TPS62203, which is a fixed voltage regulator of 3.3V. In the datasheet, I am supposedly to use some external capacitors and an inductor with the chip. I was wondering if it is necessary to use them. Please let me know. Thanks!!!