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TPS65150PWP ---- Vs output issue

Other Parts Discussed in Thread: TPS65150

Hi ,

I design TPS65150PWP in my LCD power circuit, but I have an issue about the Vs output.

Please see the attachment of my schematic and word file of waveform.

The Vs output (net name LCD_AVDD in the schematic) cannot reach the voltage 9.6V, please also see

the waveform in the word file, when VIN applied, Vs output to 9.6 at a moment, but finally it reduce to 5V.(same as VIN)

I also remove all load of Vs. But it still output fail.

Could you help me to check what's problem?

Thanks!6661.TPS65150_schematic.pdf

2451.VS_output_waveform.docx

Jefer