SBVS318B July 2017 – January 2019 TPS7A92
PRODUCTION DATA.
The TPS7A92 only turns on when EN and UVLO are above the respective voltage thresholds. The TPS7A92 has an independent UVLO circuit that monitors the input voltage to allow a controlled and consistent turn on and off. The UVLO has approximately 290 mV of hysteresis to prevent the device from turning off if the input drops during turn on. The EN signal allows independent logic-level turn-on and shutdown of the LDO when the input voltage is present. Connecting EN directly to IN is recommended if independent turn-on is not needed.
The TPS7A92 has an internal pulldown MOSFET that connects a discharge resistor from VOUT to ground when the device is disabled to actively discharge the output voltage.