The LNBP21D2 from STMicroelectronics is a highly integrated monolithic device designed to supply and control the Local Oscillator and the antenna block in a single satellite receiver system. This advanced LNB supply and control voltage regulator is part of ST's extensive portfolio of satellite communication components, known for their reliability and performance.

Key Features

• Highly Integrated Solution: The LNBP21D2 simplifies design and reduces component count by integrating several functions into one chip, including a step-up converter, voltage regulator, and tone oscillator.
• Versatile Power Management: It provides selectable output voltages (13V/18V) to accommodate different polarization modes, with a built-in low dropout regulator ensuring stable operation.
• DiSEqC 2.X Compliant: The device is compatible with DiSEqC 2.X standard, allowing for bi-directional communication between the satellite dish and the set-top box.
• Overcurrent Protection: It includes overcurrent and overtemperature protection, safeguarding the system against potential damage from external faults.
• Low Power Consumption: With its high-efficiency design, the LNBP21D2 ensures minimal power loss, making it suitable for energy-conscious applications.

Applications

The LNBP21D2 is ideal for use in a variety of satellite receiver systems, including:

• Satellite set-top boxes
• Direct Broadcast Satellite (DBS) applications
• Personal Video Recorders (PVR)
• Professional satellite receivers

Technical Specifications

With an input voltage range of 8V to 15V, the LNBP21D2 can deliver a maximum output current of 750mA. Its built-in tone oscillator generates a 22kHz signal for controlling the satellite dish's Low Noise Block downconverter (LNB). The device is housed in a PowerSSO-24 package, providing a compact footprint for space-constrained applications.

For designers and engineers looking for a robust and efficient solution for satellite receiver power supply and control, the LNBP21D2 by STMicroelectronics offers an ideal blend of performance, integration, and reliability.