The Texas Instruments LP3982ILDX-1.8/NOPB is an ultralow-noise low-dropout linear regulator. It has a 2.4V to 5.5V input range and provides a fixed 1.8V output voltage at up to 250mA of output current. The regulator also features excellent transient response, very low output noise, and a very low quiescent current (100µA). It has short-circuit protection and thermal shutdown. The package of this regulator is the NOPB (No-Lead Plastic Package).