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LM25149-Q1: About a pre-bias start-up configured in FPWM mode

Kiyoshi Koyama
Intellectual 475 points
Part Number: LM25149-Q1

Hi support team,

I have a question about a pre-bias start-up configured in FPWM mode. (tie PFM/SYNC to AGND)

Some ICs automatically operate in PFM mode during start-up, what does the LM25149-Q1 operate?

If operating in FPWM mode, is the reverse current to the low-side MOSFET limited?