TPS27SA08-Q1: Noisy device

user4303883

Part Number: TPS27SA08-Q1
Other Parts Discussed in Thread: TPS27SA08

Dear

We are using TPS27SA08 to control a heating element. The EN line is connected to PWM 1kHz, it works as expected except for the 1KhZ audible noise which is critical for our application. Any idea how to reduce noise ?

Best Regards

4 months ago

0 Patrick Shalton 4 months ago

TI__Mastermind 34250 points

Hi Jean-Michel,

Audible noise typically comes from MLCC capacitors or the load. Does this noise still occur when you remove the capacitors on the output?

Thanks,

Patrick

0 user4303883 4 months ago in reply to Patrick Shalton

Intellectual 485 points

Hi Patrick

We didi not try, so let me test

Regards

Power management

Power management forum

TPS27SA08-Q1: Noisy device