The MML25231H from NXP Semiconductors is a RF Amplifier with Frequency 1 to 4 GHz, Gain 15.2 dB, Small Signal Gain 11.7 to 17.8 dB pk-pk, Noise Figure 0.38 to 0.98 dB, Output Power 22.6 to 22.9 dBm. Tags: Surface Mount, Low Noise Amplifier. More details for MML25231H can be seen below.