STMicroelectronics LNBP20PD - Dual LNB Supply and Control Voltage Regulator

The LNBP20PD is a highly integrated solution designed by STMicroelectronics to address the needs of modern satellite set-top box (STB) systems. It is a monolithic integrated circuit that provides a dual-output voltage regulator specifically intended for supplying Low Noise Block converters (LNB) in digital satellite equipment systems.

Key Features

• Integrated Dual LNB Supply: The LNBP20PD is capable of supplying two LNBs, making it suitable for dual-tuner satellite receiver systems, allowing for simultaneous recording and viewing of different channels.
• DiSEqC 2.x Compliant: It supports DiSEqC 2.x communication protocol, which enables bi-directional communication between the satellite receiver and the LNB, essential for satellite dish positioning and control.
• High Efficiency: The device incorporates high-efficiency step-up and linear regulator sections, which minimize power loss and improve overall system reliability.
• Overload and Overtemperature Protection: LNBP20PD includes built-in protection features to safeguard against overload conditions and excessive temperature, ensuring long-term stability and performance.
• Low Power Standby Mode: It offers a low power standby mode to conserve energy when the satellite receiver is not in active use.
• I²C Interface: The presence of an I²C-compatible interface allows for easy control and monitoring of the LNB supply voltage and tone through a microcontroller.

Applications

The LNBP20PD is ideal for a variety of satellite communication applications, including:

• Digital Satellite Receivers (STBs)
• Personal Video Recorders (PVRs)
• Integrated Receiver-Decoders (IRDs)
• Professional Satellite TV equipment

Product Summary

STMicroelectronics' LNBP20PD stands out as a robust and efficient solution for powering and controlling LNBs in satellite TV systems. Its dual-output capability, compliance with DiSEqC standards, and integrated protection features make it a top choice for designers looking to create reliable and user-friendly satellite receiver systems.