General Description

The RT9161/A is a 300/500mA fixed output voltage low

dropout linear regulator. Typical ground current is

approximately 110µA, from zero to maximum loading

conditions. Wide range of available output voltage fits

most of applications. Built-in output current-limiting most

thermal-limiting provide maximal protection against any

fault conditions.

For ease of application, the RT9161/A comes in the

popular 3-pin SOT-23(300mA), SOT-89 (300mA),

SOT-223 (500mA), or TO-92 packages.

Features

● Low Dropout Voltage of 200mV at Output Current

100mA, 450mV at Output Current 300mA, and

750mV at 500mA Output Current

● Guaranteed 300/500mA Output Current

● Internal 1.5Ω P-MOSFET Draws No Base Current

● Low Ground Current 110µA

● 2% Accuracy Output Voltage

● Input Voltage Range up to 12V

● Extremely Tight Load Regulation

● Fast Transient Response

● Current-limiting and Thermal-limiting

Applications

● Voltage Regulator for LAN Card, CD-ROM, and DVD

● Wireless Communication Systems

● Battery Powered Systems