BLF8G22LS-270U

Overview

The BLF8G22LS-270 is a 270 W LDMOS power transistor designed for base station applications in the 2110 MHz to 2170 MHz frequency range. It operates with a drain-source voltage of 28 V and a quiescent current of 2400 mA, delivering an average output power of 80 W with a typical gain of 17.7 dB and drain efficiency of 30% under two-carrier W-CDMA conditions. The device features a junction-to-case thermal resistance of 0.26 K/W and withstands a load mismatch of VSWR = 10:1. It utilizes an earless flanged ceramic package (SOT502B) with integrated ESD protection.

Feature Summary

• Excellent ruggedness capable of withstanding high VSWR mismatches
• Low thermal resistance ensuring excellent thermal stability
• Lower output capacitance optimized for Doherty amplifier performance
• Internally matched design for simplified circuit integration

Applications

• RF power amplifiers for base stations
• Multi-carrier applications in the 2110 MHz to 2170 MHz range
• 3GPP test model 1 compliant systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package version and compliance status. Ensure that the procurement channel provides valid traceability for RF power transistors. Confirm RoHS compliance requirements match the project specifications before finalizing orders.

Selection Notes

Select this component for wideband base station designs requiring high linearity and efficiency in the 2110 MHz to 2170 MHz band. The internal matching network simplifies input and output impedance design. Consider the SOT502B package constraints for PCB layout and thermal management strategies to maintain junction temperature within limits.

Part Context

This part belongs to the Ampleon BLF8G series of LDMOS power transistors. These devices are engineered for wireless infrastructure, specifically targeting UMTS/W-CDMA base station sectors. The BLF8G22LS-270 represents a high-power variant within this family, balancing output capability with low memory effects for advanced modulation schemes.

Replacement Considerations

Consult official substitution lists for equivalent power levels and frequencies. Verify pinout compatibility and thermal characteristics when considering alternative models from the same manufacturer or other suppliers.