The MGA-43428 from Broadcom is a RF Amplifier with Frequency 851 to 894 MHz, Gain 31 to 33.7 dB, Output Power 36.4 to 37 dBm, Output Power 4.37 to 5.01 W, P1dB 36.4 to 37 dBm. Tags: Surface Mount, Power Amplifier. More details for MGA-43428 can be seen below.