ISL6405 Datasheet (Intersil Corporation) - Dual Output LNB Supply and Control Voltage Regulator

ISL6405, Dual Output LNB Supply and Control Voltage Regulator

® Data Sheet July 2004 ISL6405 FN9026.2 Dual Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-Top Box Designs The ISL6405 is a highly integrated voltage regulator and interface IC, specifically designed for supplying power and control signals from advanced satellite set-top box (STB) modules to the low noise blocks (LNBs) of two antenna ports.

The device is comprised of two independent currentmode boost PWMs and two low-noise linear regulators alon

ISL6405 Features

* Single Chip Power solution - True Dual Operation for 2-Tuner/2-Dish Applications - Both Outputs May be Enabled Simultaneously at Maximum Power - Integrated DC-DC Converter and I2C Interface

* Switch-Mode Power Converter for Lowest Dissipation - Boost PWMs with > 92% Efficiency - S