RT5047A - Richtek

RT5047A Single Output LNB Supply and Control Voltage Regulator

The RT5047A is a highly integrated voltage regulator and interface IC, specifically design for supplying power and control signals from advanced satellite set-top box (STB) modules to the LNB down-converter in the antenna dish or to the multi-switch box. The device is consists of the independent current-mode boost controller and low dropout linear regulator .

Features

 Wide Input Supply Voltage Range : 8V to 16V
 Output Current Limit of 550mA with 45ms timer
 Low Noise LNB Output Voltage (13.3V and 18.3V by SEL Pin)
 3% High Accuracy for 0mA to 500mA Current Output
 Push-Pull Output Stage minimizes 13.3V to 18.3V and 18.3V to 13.3V Output Transition Time
 External 22kHz Tone Input
 Meet DiSEqCTM1.x Protocol
 Output Short Circuit Protection
 Over-temperature Protection Applications
 LNB Power Supply and Control for Satellite Set-Top Box
 Analog and Digital Satellite Receivers/ Satellite TV, Satellite PC cards Pin Configurations (TOP VIEW) LNB BO.