LM5180EVM-S05: About no load

Masakazu Adachi

Intellectual 2500 points

Part Number: LM5180EVM-S05

Hello team,

I received a question from the customer.

Can the output voltage be controlled in no-load conditions?

Regards,

Masa

over 1 year ago

0 Marshall_Beck over 1 year ago

TI__Mastermind 31000 points

Hello Masa,

For a no load condition, to ensure the output doesn't increase out of regulation, either a zener clamp on the output must be utilized or a dummy load.

The design calculator provides guidance on how to select either of these components based on the application requirements

https://www.ti.com/lit/zip/snvc218

0 Masakazu Adachi over 1 year ago in reply to Marshall_Beck

TI__Intellectual 2500 points

Hello Marshall,

Thanks. In other words, will it break if I run it under no load?

Regards,

Masa

+1 Marshall_Beck over 1 year ago in reply to Masakazu Adachi

TI__Mastermind 31000 points

Your output could reach a high voltage.

Not recommended.

+1 Masakazu Adachi over 1 year ago in reply to Marshall_Beck

TI__Intellectual 2500 points

I understand. Thank you!

+1 Marshall_Beck over 1 year ago in reply to Masakazu Adachi

TI__Mastermind 31000 points

You are welcome.

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LM5180EVM-S05: About no load