Hello support team
Can we use the LM25149-Q1 to apply an external boosted 5V power supply to the CBOOT pin via SBD as shown below?
We'd like to keep the Vgs of the High side MOSFET high even when the VIN is low.
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Hello support team
Can we use the LM25149-Q1 to apply an external boosted 5V power supply to the CBOOT pin via SBD as shown below?
We'd like to keep the Vgs of the High side MOSFET high even when the VIN is low.
Hi Kiyoshi,
Yes you can apply external bootstrap supply with a diode.
You can also power VCCX with the external 5V.
LM25149-Q1 has an internal boot diode as well.
Hope this helps,
-Orlando