TPS76525DG4                                        Description

This device is designed to have an ultra-low 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 85 mV at an output current of 150 mA for the TPS76550) 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 150 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 μA.

TPS76525DG4                                      Features

 150-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 85 mV (Typ) at 150 mA

(TPS76550)

 Ultra-Low 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

TPS76525DG4                                      Applications

? Auxiliary inverters

? Air conditioning

? Motor drives