LM53625-Q1: OFF sequence

Koji Hayashi92

Part Number: LM53625-Q1

Hi TI-team

What happens to the output when changing EN from Hi to Low ?

I think that the output drops, but how is the output dropped ?

Sink Tr or RFB or ;ow side switch turn on.

Where is it described in the data sheet ?

Best Regards,

Koji Hayashi

0 Arief Hernadi over 4 years ago

Hi,

I believe that the output drops with the loading from either a feedback resistor or if you have external load it will pull the VOUT down.

Based on my knowledge the switch should be turned off in this case.

Thanks

-Arief

0 Koji Hayashi92 over 4 years ago in reply to Arief Hernadi

Hi Arief-san

Thank you for response.

When this IC is no external load.

This IC do not have sink Tr, Low side FET do not turn on.

The output drops with only feedback resistor.

Do you agree ?

Best Regards,

Koji Hayashi

0 Arief Hernadi over 4 years ago in reply to Koji Hayashi92

Yes it is going through the feedback resistor and BIAS pin if you connect this BIAS to VOUT

Thanks

-Arief

0 Koji Hayashi92 over 4 years ago in reply to Arief Hernadi

Hi Arief-san

Thank you for response.

I understand.

Best Regards,

Koji Hayashi

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