The LV5144 includes an internal junction temperature monitor. If the temperature exceeds 175°C (typical), thermal shutdown occurs. When entering thermal shutdown, the device:

1. Turns off the high-side and low-side MOSFETs.
2. Pulls SS/TRK and PGOOD low.
3. Turns off the VCC regulator.
4. Initiates a soft-start sequence when the die temperature decreases by the thermal shutdown hysteresis of 20°C (typical).

This protection is a non-latching protection, and the device cycles into and out of thermal shutdown if the fault persists.