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1.1 volt power supply not coming up. It looks like it tries, gets to about 0.65 V and then shuts off. 3.3V is applied and the 1.2V, and 2.5 V supplies are up.  The design is nearly a direct copy of the Vybrid Tower.

Question asked by MARK WATSON on Feb 25, 2016
Latest reply on Mar 2, 2016 by MARK WATSON

Unfortunately, there is little information on the 1.1V LDO in the manual.  I am not sure if it is shutting down due to overcurrent or for some other reason.  I did decrease the capacitor on the LDO filter pin from 10 uF to 4.7 uF do decrease the initial surge, but that did not help.  I am wondering if a parasitic SCR is being turned on in the unit.