Power consumption formula request for linear regulators

Hi Richard,

If you already have power consumption, please use the parameters in Thermal information table and equation in www.ti.com/.../spra953 to calculate Tj.

Regards,
Weidong

Hi Weidong,
The poweer consumption is what I want, due to I want to check our circuit design that Pc if under component Tj of specification.
So, I need a formula to calculate actual Pc in my circuit design.

Best regards,
Richard

Hi Richard,

You can use Webench to get Pd. Just go to TPS53317 product page www.ti.com/.../TPS53317 and the Webench model is on the right side. You can enter your application parameters to match your circuit.

Regards,
Weidong

Hi Weidong,
I can't find webench model, if it's TI internal tool?


Best regards,
Richard

Hi Richard,

On the right side of the product page, you should be able to see the Webench model link as shown below. You can enter the parameters and click Open model to get the design parameters.

Regards,

Weidong

Hi Weidong,

Thanks for your supporting, but the webench can't fulfil my request due to it is solution search for designer.

Actually, I have TI solution in my design. I just want to calculate actual power consumption in my application.

If TI has other online tool to calculate Pc?

Best regards,

Richard

Hi Weidong,
For SN1602003RVFR covenrter, please kindly help to provide power consumption. thanks!

Vin: 12 V
Vout: 3.3 V
Iout: 25.61 A
Fsw: 650 KHz
Inductance: 0.75 uH

Best regards,
Richard Dai