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TPS62740: How to eliminate Ripples from DC-DC converter using PI filter

Part Number: TPS62740
Other Parts Discussed in Thread: MSP430FR6047, TPS62240, LM3676, TPS62840

Dear TI Team,

We  are using TPS62740 Buck converter to our MSP430FR6047 IC,  we are getting ripples at the output of Buck converter (without load). Green waveform without using filter and Yellow one is with simple  passive LC filter(2.2uH,10uF).here you can in yellow waveform ripples got reduced to 2.8mV, we want to implement PI filter for it. we observed that we are working more or less around 2KHz Frequency. which capacitor and Inductor values will benefits us to reducing the output ripples.