Other Parts Discussed in Thread: LM27403,
I having trouble using the LM27402SQ/NOPB(WQFN Type)
I built a circuit to get 12V/4A output with 19V input. but It was fail.
I used TI Webench as a reference circuit, and the information is as follows.
When VDD is measured, a 0.7 V sawtooth waveform or sine wave is output. I would like help.