7.3.7 Enable and Thermal Shutdown

The TPS55330 enters shutdown when the EN voltage is less than 0.68 V (min) for more than 1 ms. In shutdown, the input supply current for the device is less than 10 µA (max). The EN pin has an internal 950kΩ pull down resistor to disable the device if the pin is floating.

An internal thermal shutdown turns off the device when the junction temperature exceeds 165°C (typical). The device restarts when the junction temperature drops by 15°C.