The LP2991 is a fixed-output, low-noise, high PSRR, low-dropout regulator that offers exceptional, cost-effective performance for both portable and nonportable applications. The LP2991 has an output tolerance of 1% across line, load, and temperature variation (for the new chip) and is capable of delivering 250 mA of continuous load current.

This device features integrated overcurrent protection, thermal shutdown, output enable, and internal output pulldown and has a built-in soft-start mechanism for controlled inrush current. This device delivers excellent line and load transient performance. The operating ambient temperature range of the device is –40°C to 125°C.