RT9081A 500mA, 5.5V, Ultra Low Dropout Linear Regulator

General Description

The RT9081A is a high performance positive voltage regulator with separated bias voltage (VBIAS), designed for applications requiring low input voltage and ultra low dropout voltage, output current up to 500mA. The feature of ultra low dropout voltage is ideal for applications where output voltage is very close to input voltage. The input voltage can be as low as 0.8V and the output voltage is adjustable by an external resistive divider. The RT9081A features very low quiescent current consumption for portable applications. The device is available in the ZADFN-6L 1.2x1.2 package.

Features

     Input Voltage Range : 0.8V to 5.5V

     Bias Voltage Range : 2.4V to 5.5V

     Output Voltage Fixed and Adjustable Versions

     0.9V to 1.8V (Fixed)

     0.8V to 3.6V (Adjustable)

     Accurate Output Voltage Accuracy (1.5%) Over Line, Load @ 25°C

     Ultra Low Dropout Voltage : 140mV at 500mA

     Low Bias Input Current

     80μA in Operating Mode

     0.5μA in Shutdown Mode

     Enable Control

     Output Active Discharge Function

     RoHS Compliant and Halogen Free

Applications

     Battery Powered Systems

     Portable Electronic Device

     Digital Set Top Boxes

RT9081A Datasheet Download