PD85050S

Overview

The PD85050S is an LDMOS transistor designed for mobile radio applications. It serves as the core active component in demonstration boards such as the STEVAL-TDR032V1, configured in a push-pull Class AB power amplifier topology. The device operates within a frequency range of 760-870 MHz with a supply voltage of 12.5 V. Key electrical parameters include a minimum gain of 10 dB, typical efficiency of 50%, and an output power capability of 60 W. The amplifier maintains stability under load VSWR conditions of 3:1 minimum.

Feature Summary

• Designed for broadband operation in mobile radio environments
• Utilizes LDMOS technology for high power performance
• Compatible with balanced microstrip line networks via embedded planar baluns

Applications

• Mobile radio power amplification
• RF power module evaluation
• Demonstration board prototyping

Procurement Notes

Verify the current lifecycle status before procurement, as documentation indicates NRND (Not Recommended for New Designs) status for associated demonstration boards. Confirm specific package details and datasheet revisions directly from STMicroelectronics official channels to ensure compatibility with existing designs.

Selection Notes

Select this component for applications requiring 60W output in the 760-870 MHz band. Ensure the design supports a 12.5V supply and manages thermal stability appropriately. Verify that the system can handle the specified VSWR limits and integrates with the required lumped L-C input/output networks.

Part Context

The PD85050S is an RF LDMOS transistor manufactured by STMicroelectronics. It is primarily utilized in hybrid RF power modules and evaluation kits like the STEVAL-TDR032V1. The component is part of ST's portfolio of RF transistors, specifically targeting mobile radio infrastructure and equipment.

Replacement Considerations

Consult STMicroelectronics for officially confirmed substitute part numbers. No public substitutes are listed in the provided documentation.