What are LDMOS Transistors?
LDMOS Transistors, or Laterally-Diffused Metal-Oxide-Semiconductor Transistors are a category of power transistors that are designed for high power RF applications. LDMOS transistors provide better power saturation capability and minimize distortion at higher power levels. These transistors also feature improved RF performance, ruggedness and reliability compared to GaAs Transistors. They are most often used in Wireless Infrastructure applications like base stations.
An RF Transistor is a semiconductor device that is used to amplify and switch electronic signals.
Important Parameters to consider in LDMOS Transistor:
- Operating Frequency: This is the frequency range at which an LDMOS Transistor is fully functional or provides the best performance.
- Output Power (W/dBm): It is the magnitude of power that the transistor will provide at the output after amplifying a signal.
- Gain (dB): The gain of an LDMOS Transistor is the ratio of output to input power/amplitude. This is measured in dB.
- Power/Drain Efficiency (%): Efficiency is a measure of how well a device converts one energy source to another. In case of a transistor drain efficiency is the ratio of output RF power to the input DC power.
- Package Type: Based on the required application, the package type for the LDMOS transistor can be selected. There are a number of different package types available - Connectorized, Surface Mount, Die etc.
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