Lower voltage on LDO_1P1 on i.MX6ULL

[evgenyboger]

Hi,

I'd like to ask about possible side-effects of lowering LDO_1P1 voltage below its default value of 1.1V.

i.MX 6ULL datasheet ( IMX6ULLIEC Rev. 1.2) states that "Typical Programming Operating Range is 1.0V to 1.2 V". Does it mean it's totally safe to set this voltage to 1.0V?

[igorpadykov · Accepted solution]

Hi Evgeny 

yes values provided in datasheet are safe, however setting to lower limit

may be unsafe due to ldo tolerancies, so some margin is needed.

Best regards
igor
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[evgenyboger]

Thank you! May I know what exactly this LDO tolerance is? Unfortunately I couldn't find this information in the datasheet.

Is 25mV enough to account for the LDO tolerancies?

[igorpadykov]

it is about 2-3%.