The MGA-53543 from Broadcom is a RF Amplifier with Frequency 0.05 to 6 GHz, Gain 14 to 17.4 dB, Noise Figure 1.3 to 1.9 dB, Output Power 18.3 to 19.3 dBm, Output Power 0.07 to 0.09 W. Tags: Surface Mount, Low Noise Amplifier. More details for MGA-53543 can be seen below.