LM5145: LM5145 Bode Plot Question

user5956241

Intellectual 565 points

Part Number: LM5145

Hi Tier,

I have design with LM5145 and test bode plot find some question need you help recommend.

Do you know some reason can induce the gain response trace back to cross zero and fall again?

over 3 years ago

0 Timothy Hegarty over 3 years ago

TI__Mastermind 49647 points

Hello,

This is likely a measurement setup error at high frequencies.

Also, please ensure that the filter filter is adequately damped. If the issue persists, you can forward the schematic and a completed LM5145 quickstart calculator file for review: https://www.ti.com/tool/LM5145DESIGN-CALC

Regards,

Tim

Power management

Power management forum

LM5145: LM5145 Bode Plot Question