LM36272: Any concern for adding a bead after the schottky diode

Randy Chen

Part Number: LM36272

Hi,

Is there any concern for adding bead BLM18KG121TN1(datasheet is attached) that location as below? If not recommend, why? What is the concern about?

BLM18KG121TN1.pdf

Best regards,

Randy Chen

over 6 years ago

0 Rodney Jones over 6 years ago

TI__Prodigy 600 points

this item has been assigned; someone will reply shortly

0 Angelos Tsiros over 6 years ago in reply to Rodney Jones

TI__Intellectual 2140 points

We don't recommend adding ferrite beads in series with the schottky. We have not simulated or verified proper loop stability with such configuration. It should be okay to add a place holder for it on the pcb as long as doing so does not violate the suggested layout guidelines. Then, evaluate proper operation and decide on the use of such configuration.

Regards,

Angelos Tsiros

Power management

Power management forum

LM36272: Any concern for adding a bead after the schottky diode