Inverting buck recommend

Peter Xu

Other Parts Discussed in Thread: LMR43610-Q1, LMR36503

Hi team,

I want to find a buck that support below conditions. The background is that I want to use it to output -20V. And I can't find a suitable device in TI.com. The actual input voltage is 2.5-5.5V. Considering the stable running condition, the maximum input should be over 5.5V+20V = 25.5V.

Vin = 2.5- 25V.

Iout = 20mA.

Best Regards,

Peter

over 2 years ago

0 Peter Xu over 2 years ago

TI__Expert 6070 points

Hi team,

Any updates here?

Regards,

Peter

+1 Gui He over 2 years ago in reply to Peter Xu

TI__Mastermind 27306 points

Hi Peter

Sorry for late response. I am afraid that the start-up will be a problem since most of our devices has the Vinmin larger than 2.5V.

LMR43610-Q1 has Vin range from 3~36V, LMR36503 Vin range is 3~65V.

Thanks and best regards.

0 Peter Xu over 2 years ago in reply to Gui He

TI__Expert 6070 points

Hi Gui,

Thanks for your support.

Regards,

Peter

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Inverting buck recommend