DP83867IS: DP83867ISRGZR:Power Sequencing in three supply mode

Divy

Intellectual 380 points

Part Number: DP83867IS

Hi,

As per datasheet , there is two supply mode and three supply mode of operation.

What is the advantage in three supply mode. Is that Power consumption is reduced in three supply mode?

We are operating 100Mbps RGMII mode.3 supply mode is 245.02mW and 2 supply mode is 257.47mW

Thanks,

Divy

over 5 years ago

0 Vibhu Vanjari over 5 years ago

TI__Genius 11900 points

Hello Divy,

Thanks for reaching out! You are right the three supply mode should consume less power than the three supply mode. This is because the internal LDO which generates the 1.8 V is not used.

More information on the power consumption of the DP83867 can be found here: http://www.ti.com/lit/an/snla241/snla241.pdf

Thanks,

Vibhu

Interface

Interface forum

DP83867IS: DP83867ISRGZR:Power Sequencing in three supply mode