The TPS742 family features a factory-trimmed, accurate current limit that is flat over temperature and supply voltage. The current limit allows the device to supply surges of up to 1.8 A and maintain regulation. The current limit responds in about 10 μs to reduce the current during a short circuit fault. Recovery from a short circuit condition is well-controlled and results in very little output overshoot when the load is removed. See Figure 5-28 in the Typical Characteristics section for a graph of I_OUT versus V_OUT performance.

The internal current limit protection circuitry of the TPS742 family of devices is designed to protect against overload conditions. The circuitry is not intended to allow operation above the rated current of the device. Continuously running the TPS742 devices above the rated current degrades device reliability.