JAJSFE6I July 2009 – May 2018 TPS65070 , TPS65072 , TPS65073 , TPS650731 , TPS650732
UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.
The EN_EXTLDO pin will go high during start-up depending on the sequencing option programmed. The pin will go low again if the TPS6507x is going to OFF state (POWER OFF).
The external LDO is used for the sequencing option DCDC_SQ[0,2]=111, LDO_SQ[0,2]=010, used for the Atlas4 processor and with sequencing option DCDC_SQ[0,2]=100, LDO_SQ[0,2]=111 used for the Sirf Prima processor. See Application and Implementation for the timing diagrams.