We are using TPS7A49 LDO to convert 15 V DC to 5 V DC (Current Requirement: 20 mA). Our 15V DC source can supply maximum current of 200 mA. Please let us know that if the 5V output of LDO is short-circuited, then would the LDO start taking maximum current from the 15 V source? As mentioned in your datasheet:
" The fixed internal current limit of the TPS7A49 family helps protect the regulator during fault conditions. The maximum amount of current the device can source is the current limit (309 mA, typical), and is largely independent of output voltage. For reliable operation, the device does not operate in current limit for extended periods of time."
Does the fault condition which is mentioned in above line also includes the LDO output short circuit fault? If so, then please explain that if the LDO output short circuit remains for a long period of time, then for reliable operation, will the LDO go into shutdown mode until the output short-circuiting is removed?
Thanks and Regards,