LMR36510: LMR36510 light load mode efficiency

Peter Wang

Part Number: LMR36510

Dear team,

If I want to increase the light low mode efficiency, I can increase the FB resistor value to reduce the loss.

According to the datasheet REBT can be 1M ohms, but is there any concern to increase REBT to 1M ohms.

I know that need to add CFF and anything else to be concern?

Another question that is there P2P component of LMR36510 but the frequency is not 400kHz and the current limit is under 1A?

Thanks !

0 Daniel Li14 over 2 years ago

1. 1Mohm feedback resistor is OK, need to be careful about layout, both feedback resistor need to be close to FB PIN.

2. LMR36510 is lowest current rating device in this package, We don't have P2P device right now.

Thanks

0 Peter Wang over 2 years ago in reply to Daniel Li14

Hi,

Thanks for helping.

I just have a quick question that is there any solution to improve the light load mode efficiency?

0 Daniel Li14 over 2 years ago in reply to Peter Wang

Hi Peter:

1. large feedback resistor is one key for improve the efficiency

2. customer can increase the inductor value a little bit large , it will help on light load eff

Thanks

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