The HE554 from BOWEI Integrated Circuits is a RF Amplifier with Frequency 2 to 2.5 GHz, Gain 22 to 24 dB, Gain Flatness ±1 dB, Noise Figure 1.1 to 1.5 dB, Output Power 10 to 10.5 dBm. Tags: Drop-In, Low Noise Amplifier. More details for HE554 can be seen below.