8.3.11 Thermal Shutdown

Thermal shutdown is an integrated self-protection used to limit junction temperature and prevent damage related

to overheating. Thermal shutdown turns off the device when the junction temperature exceeds 168°C (typical) to

prevent further power dissipation and temperature rise. Junction temperature decreases after shutdown, and the

TLVM13610 attempts to restart when the junction temperature falls to 159°C (typical).

8.4 Device Functional Modes

8.4.1 Shutdown Mode

The EN pin provides ON and OFF control for the TLVM13610. When VEN is below approximately 0.4 V, the

device is in shutdown mode. Both the internal LDO and the switching regulator are off. The quiescent current in

shutdown mode drops to 0.6 µA (typical). The TLVM13610 also employs internal undervoltage protection. If the

input voltage is below its UV threshold, the regulator remains off.

8.4.2 Standby Mode

The internal LDO for the VCC bias supply has a lower enable threshold than the regulator itself. When VEN is

above 1.1 V (maximum) and below the precision enable threshold of 1.263 V (typical), the internal LDO is on and

regulating. The precision enable circuitry is turned on after the internal VCC is above its UVLO threshold. The

switching action and voltage regulation are not enabled until VEN rises above the precision enable threshold.

8.4.3 Active Mode

The TLVM13610 is in active mode when VVCC and VEN are above their relevant thresholds and no fault

conditions are present. The simplest way to enable operation is to connect EN to VIN, which allows self start-up

when the applied input voltage exceeds the minimum start-up voltage.

TLVM13610

SLVSH63 – FEBRUARY 2023

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