Single Output LNB Supply and Control Voltage Regulator
The RT5070 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 for the
The RT5070 has fault protection (over-current,
over-temperature and under-voltage lockout).
The RT5070 are available in a SOP-8 (Exposed Pad)
package to achieve optimized solution for thermal
SP : SOP-8 (Exposed Pad-Option 2)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Richtek products are :
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering
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
Push-Pull Output Stage Minimizes 13.3V to
18.3V and 18.3V to 13.3V Output Transition Time
Output Short Circuit Protection
LNB Power Supply and Control for Satellite Set-Top
Analog and Digital Satellite Receivers/ Satellite TV,
Satellite PC cards
SOP-8 (Exposed Pad)
Simplified Application Circuit
Copyright © 2016 Richtek Technology Corporation. All rights reserved.
DS5070-01T00 November 2016
is a registered trademark of Richtek Technology Corporation.