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TPS7A4701-EP: signature of Vout during thermal shutdown during an OC event

Part Number: TPS7A4701-EP


what is the signature / behavior of the Vout of the LDO before during and after a thermal shutdown event if the LDO is experiencing OC event prior to and after the thermal shutdown. does the device re-enable back up to the OC limit? 

  • Hi Michael,

    If the LDO is experiencing an OC event, the output voltage will fall to whatever voltage is required to maintain a constant current of ICL. When the thermal shutdown temperature is reached, the LDO closes its channel so that current no longer flows through it, and the output cap is discharged by the load. If the condition that was causing the OC has not been removed before the LDO tries starting up again, the LDO will start up back into current limit and the cycle will continue until the OC condition is removed.