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SPIRIT1 SMPS Off Mode Power Supply

Question asked by chong.heard on Oct 29, 2015
Latest reply on Oct 29, 2015 by chong.heard

In regards to using the SPIRIT1 device in the SMPS OFF mode (without internal switch-mode converter), it's not clear whether the 1.4-1.8V net connected to the SMPS Ext 2 pin is provided internally via an internal LDO, or is it mandatory to be supplied by an external 1.4-1.8V supply?

Please advise which method should be taken. Thank you.