The TPS70251 series of linear voltage regulators are low-dropout (LDO) regulators that operate with an input voltage range of 2.5 V to 6.5 V and deliver up to 200 mA of output current.
The TPS70251 series is designed to have a low quiescent current of 30 µA (typical) and a low dropout voltage of 160 mV (typical) at 200 mA.