Minimum duty cycle at LMR62421

masa0301

Intellectual 960 points

Other Parts Discussed in Thread: LMR62421

Could you tell me the minimum duty cycle at the LMR62421?

Best regards,

masa

over 11 years ago

0 masa0301 over 11 years ago

Intellectual 960 points

I know typ 5%.

So I want to know minimum duty cycle (min:~%,typ:5% max:~%)

Best regards,

masa

0 Marc Davis-Marsh over 11 years ago in reply to masa0301

TI__Genius 10115 points

I will try to contact a product engineer to see if he has any data on what min and max from characterization were.

Marc

0 Marc Davis-Marsh over 11 years ago in reply to Marc Davis-Marsh

TI__Genius 10115 points

I talked with the product engineer and he has no data on the min and max of the minimum duty cycle. It was only tested as a typical for the datasheet.

Regards,

Marc

0 masa0301 over 11 years ago in reply to Marc Davis-Marsh

Intellectual 960 points

Thank you for your reply!

I discussed with my customer.

Coustomer very need this parameter.

Because of they spec is below.

Vin:3.3V

Inductor input voltage:14V

(Its mean separate Vin and inductor input voltage)

Vout:15V

Iout:500mA

customer　consider that min duty cycle(maximum min duty cycle spec).

So could you tell me design spec.

Best regards,

masa

Power management

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Minimum duty cycle at LMR62421