TPS62067-Q1: Adaptive Voltage Scaling function

Hi,

As far as I know, we do not test & qualify a specific AVS circuit for a specific device.

But let me discuss internally and get back to you mid next week. (We are on Easter Break until 2 April)

Could you share the full test report (showing Fig above) with us?

Regards,

Febin

Hi Sir,

I'm sorry, it is a confidential document, and I knew the GW5xxx series EVB guidelines mentioned the AVS function.

Hi Sir,

The customer is asking the follow your app note to do AVS function, is the TPS62067A-Q1 stable when the PWM Duty at 50%?

Could you please review the schematics and advise some comments? Thanks!

The design condition as below,

Vin = 5V +/-5%
Vout = 0.9V
PWM signal = 2MHz, 1.8V Duty 0~100%
Vout range = 0.825V~0.945V

Hi Henry,

I will provide my feedback later today.

Thanks,

Febin

Hi Henry,

50% duty cycle seems to be okay.

Could you please share the detailed calculation for R4, R5, R20, R19, C8?

Thanks,

Febin

Hi Sir,

Sorry for late reply response.

The customer followed the calculation tool.

core power with Adaptive Voltage Scaling_01.xlsx

Hi Henry,

Sorry for the delay... I was on a Biz trip and got back yesterday.

I will check the calculations and get back to you by Friday.

Thanks,

Febin

Hi Henry,

I was on back to back Biz trips and could not get back to you earlier... I know it's been a while, do you still need some help with your request.

Apologies for the delay.

Thanks,

Febin