TPS75701,pdf(Fast-Transient Re

The TPS757xx family of 3-A low dropout (LDO) regulators contains four fixed voltage opTIon regulators with integrated power-good (PG) and an adjustable voltage opTIon regulator. These devices are capable of supplying 3 A of output current with a dropout of 150 mV (TPS75733). Therefore, the device is capable of performing a 3.3-V to 2.5-V conversion. Quiescent current is 125 µA at full load and drops down to less than 1 µA when the device is disabled. The TPS757xx is designed to have fast transient response for large load current changes.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is low (typically 150 mV at an output current of 3 A for the TPS75733) and is directly proporTIonal to the output current.