TPS715xx

The TPS715xx low-dropout (LDO) voltage regulators offer the benefits of high input voltage, low-dropout voltage, low-power operation, and miniaturized pack-aging. The devices, which operate over an input range of 2.5 V to 24 V, are stable with any capacitor ( 0.47 F). The low dropout voltage and low quiescent current allow operations at extremely low power levels. Therefore, the TPS715xx are ideal for powering battery management ICs. Specifically, since the devices are enabled as soon as the applied voltage reaches the minimum input voltage, the output of TPS715xx is quickly available to power continuously operating battery charging ICs.


The usual PNP pass transistor TPS715xx has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the low dropout voltage, typically 415mV at 50 mA of load current, is directly proportional to the load current. The low quiescent current of TPS715xx (3.2 A typically) is stable over the entire range of output load current (0 mA to 50 mA).