The TAT7457 from Qorvo is a RF Amplifier with Frequency 5 MHz to 1.218 GHz, Gain 19 dB, Noise Figure 2 dB, Output Power 21 dBm, Output Power 0.13 W. Tags: Surface Mount, CATV Amplifier, Gain Block, Low Noise Amplifier. More details for TAT7457 can be seen below.