General Description
The RT9048 is a high performance positive voltage regulator
designed for use in applications requiring ultra low input
voltage and ultra-low dropout voltage at up to 2A. The
feature of ultra-low dropout voltage is ideal for the
application where output voltage is very close to input
voltage. The input voltage can be as low as 1.4V and the
output voltage is adjustable by an external resistive divider
as low as 0.5V. The RT9048 provides an excellent output
voltage regulation over variations in line, load and
temperature. Over-current and over-temperature protection
functions are provided. Additionally, an enable pin is
designed to further reduce power consumption while
shutdown and the shutdown current is as low as 1.5μA.
The RT9048 is available in the SOP-8 (Exposed Pad)
package.

Features
 Input Voltage as Low as 1.4V
 Ultra-Low Dropout Voltage 400mV @ 2A
 Over-Current Protection
 Over-Temperature Protection
 1.5μA Input Current in Shutdown Mode
 Enable Control
 RoHS Compliant and Halogen Free

Applications
 Telecom/Networking Cards
 Motherboards/Peripheral Cards
 Industrial Applications
 Wireless Infrastructure
 Set-Top Box
 Medical Equipment
 Notebook Computers
 Battery Powered Systems