TPS76628DR

TPS76615, TPS76618, TPS76625 TPS76627, TPS76628, TPS76630 TPS76633, TPS76650, TPS76601 www.ti.com................................................................................................................................................. SLVS237C – AUGUST 1999 – REVISED JANUARY 2009 ULTRALOW QUIESCENT CURRENT 250-mA LOW DROPOUT VOLTAGE REGULATORS FEATURES 1 2 250-mA Low Dropout Voltage Regulator Available in 1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V Fixed Output and Adjustable Versions Dropout Voltage to 140 mV (Typ) at 250 mA (TPS76650) Ultralow 35-µA Typical Quiescent Current 3% Tolerance Over Specified Conditions for Fixed Output Versions Open-Drain Power Good 8-Pin SOIC Package Thermal Shutdown Protection DESCRIPTION This device is designed to have an ultralow quiescent current and be stable with a 4.7-µF capacitor. This combination provides high performance at a reasonable cost. Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV at an output current of 250 mA for the TPS76650) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 35 µA over the full range of output current, 0 mA to 250 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a sleep mod...