REF3012: Max Power

Chad Ricci

Prodigy 70 points

Part Number: REF3012

I was wondering what the maximum power for this voltage regulator is. Thank you!

over 6 years ago

0 Marcoo Z over 6 years ago

TI__Mastermind 19550 points

Hi Chad,

Can you specify what type of maximum power you are referencing? Is this the maximum output power or power dissipation?

-Marcoo

0 Chad Ricci over 6 years ago in reply to Marcoo Z

Prodigy 70 points

Both preferably, but mainly the maximum output power.

0 Ethan T over 6 years ago in reply to Chad Ricci

TI__Expert 3835 points

Hi Chad,

The REF3012 has a recommended maximum output current rating of 25mA. At 1.25 Vout the max output power would be 31.25 mW.

Power dissipation depends on input voltage, load current, and ambient temperature. Using the junction-to-ambient thermal metric, RJA, and the abs max rating of junction temperature. At 25C, the maximum power dissipation is (150 -25)/297.3 =~ 420mW.

Hope this helps,
Ethan

Power management

Power management forum

REF3012: Max Power