LNBP21PD

Special Purpose Regulators Overview

The LNBP21PD is a monolithic voltage regulator and interface IC designed for analog and digital satellite STB receivers, SatTV sets, and PC cards. It integrates a step-up converter and an I2C interface to manage LNB supply and control functions. The device operates with an input voltage range of 8V to 15V and is housed in a PowerSO-20 package with an exposed pad. It supports surface mount mounting and functions within an operating temperature range of 0°C to 85°C.

Special Purpose Regulators Feature Summary

• Integrates a step-up converter for LNB power generation
• Includes I2C interface for digital control and monitoring
• Monolithic design combining voltage regulation and interface logic

Special Purpose Regulators Applications

• Analog satellite STB receivers
• Digital satellite STB receivers
• Satellite TV sets
• Satellite receiver PC cards

Special Purpose Regulators Procurement Notes

Verify component status as the LNBP21PD is listed as obsolete by major distributors. Confirm availability of alternative packages or updated series components from STMicroelectronics if current stock is insufficient. Ensure compatibility with existing PCB footprints when sourcing replacements.

Special Purpose Regulators Selection Notes

Select this component for applications requiring integrated LNB supply control in satellite reception equipment. Consider the PowerSO-20 package constraints and thermal requirements due to the exposed pad. Verify that the 8V to 15V input range matches the system power supply specifications before integration.

Special Purpose Regulators Part Context

This part belongs to the LNBP21 series of special purpose regulators manufactured by STMicroelectronics. It is specifically engineered for satellite television signal processing systems, providing necessary power management and communication interfaces for low-noise block downconverters in consumer electronics.

Special Purpose Regulators Replacement Considerations

Check for LNBP21PD-TR variant which shares identical functional specifications but differs in packaging format. No other direct substitutes are confirmed in public documentation.