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LM5113: External Bootstrap Requirement

Part Number: LM5113
Other Parts Discussed in Thread: LMG1205

Hello,

I have a question regarding bootstrap for LM5113TME HB IC for GaN. As in the datasheet the LM5113 already have an internal bootstrap diode, is it recommended to use external bootstrap diode?. Previously I used the LMG1205 and it works fine without external bootstrap diode. However, I need to change to LM5113 as LMG1205 now is out of stock.

Thank you.

Best regards,

Adhistira

  • Hi Adhistira,

    Thank you for posting your question on E2E. An external bootstrap diode is not necessary for the LM5113 as it has an internal diode, as you mentioned. For an example of this, please see the "Typical Application" section of the datasheet.

    Thanks,

    Daniel W