The LM1085IS-3.3/NOPB with LDO Voltage Regulators 3A LDO POS REG is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. The device provides a regulated output voltage of 3.3 Volts with a load current up to 3A, and is capable of regulating a 5V input down to as low as 3V without adversely affecting performance. It features excellent line and load regulation, high ripple rejection, as well as very low quiescent current. It also includes a logic voltage supervisor (undervoltage lockout) and programmable current limit protection. The LM1085IS-3.3/NOPB is available in SOT-223 and TO-220 packages.