TLV62065: The audible noise about TLV62065

takahiko yokota

Mastermind 7135 points

Part Number: TLV62065

I have a question about TLV62065.

Are there the possibility to occur the audible noise about TLV62065 when Vin and Iout change?

The audible noise occurred by changed Vin and Iout, when I used DC/DC convert of hysteresis in the past.

Best regards,

Yokota

over 6 years ago

0 Sabrina over 6 years ago

TI__Expert 8420 points

Hi Yokota,

Is mode pin conected to high or low?
What are you operating conditions? Vin, Vout and Iout

0 takahiko yokota over 6 years ago in reply to Sabrina

Mastermind 7135 points

Hi Sabrina-san

Thank you for the reply.

Mode pin connected to high.

Operating condition is the following.

Vin：3.3V

Vout：1.2V and 1.8V

Iout：300~600mA(Vout=1.2V), 100~300mA(Vout=1.8V)

Best regards,

Yokota

0 Sabrina over 6 years ago in reply to takahiko yokota

TI__Expert 8420 points

Hi Yokoto-san,
When Mode pin is high the device operates in forced PWM mode, with fixed frequency (typically 3MHz)Therefor I don't expect audible noise.

Regards,
Sabrina

Power management

Power management forum

TLV62065: The audible noise about TLV62065