The SKY65405-21 from Skyworks Solutions is a RF Amplifier with Frequency 2.4 to 2.5 GHz, Gain 15 dB, Noise Figure 1.1 dB, Output Power 15 dBm, Output Power 0.03 W. Tags: Surface Mount, Low Noise Amplifier, Power Amplifier. More details for SKY65405-21 can be seen below.