The HE575B from BOWEI Integrated Circuits is a RF Amplifier with Frequency 10 MHz to 3.5 GHz, Gain 11 to 12 dB, Gain Flatness ±1 to 1.5 dB, Noise Figure 2.8 to 3.5 dB, Output Power 19 to 20 dBm. Tags: Drop-In, Power Amplifier. More details for HE575B can be seen below.