Lower voltage on LDO_1P1 on i.MX6ULL

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Lower voltage on LDO_1P1 on i.MX6ULL

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evgenyboger
Contributor II

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?

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igorpadykov
NXP Employee
NXP Employee

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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644 Views
igorpadykov
NXP Employee
NXP Employee

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
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

643 Views
evgenyboger
Contributor II

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?

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igorpadykov
NXP Employee
NXP Employee

it is about 2-3%.