REF3312: Load regulation

Yuto Sakai

Mastermind 6100 points

Part Number: REF3312

Hi,

Please tell me the test condition below.

Why is there no current condition in Load regulation condition?

Or what do you mean?

Best Regards,

Yuto Sakai

over 6 years ago

0 Marcoo Z over 6 years ago

TI__Mastermind 19370 points

Hi Yuto-san,

The current condition should be the same as the one below -/+ 5mA but only ay 25C.

-Marcoo Z

0 Yuto Sakai over 6 years ago in reply to Marcoo Z

Mastermind 6100 points

Hi Marcoo-san,

Thank you for your reply.
For both the 4 items in "load regulation", I understood that the current condition is +/- 5 mA, is it correct?
Also, does the current condition "+/- 5 mA" refer to the characteristic when it changes from -5 to + 5 mA?

Best Regards,
Yuto Sakai

0 Marcoo Z over 6 years ago in reply to Yuto Sakai

TI__Mastermind 19370 points

Hi Yuto-san,

Yes, for all 4 items it is +/- 5mA.

The load regulation does not include the transient characteristic like the ripple, instead it is the final settled value. Section 7 of this document helps explain it better and has visuals.

-Marcoo Z

0 Yuto Sakai over 6 years ago in reply to Marcoo Z

Mastermind 6100 points

Hi Marcoo-san,

Does the current condition "Iout = + / - 5 mA" mean when it fluctuated + 5 mA or -5 mA?
For example, do you mean fluctuations of 0 mA → 5 mA or 5 mA → 0 mA?

Best Regards,
Yuto Sakai

0 Marcoo Z over 6 years ago in reply to Yuto Sakai

TI__Mastermind 19370 points

Hi Yuto-san,

It means that between the ranges of +5ma and -5mA any current change will fall under that delta of ppm/mA. So for example in a typical application, the current goes from 0mA to 2mA at 25C the output voltage can change (6ppm/mA) * 2mA = 12ppm typical.

-Marcoo

Power management

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REF3312: Load regulation