The A3M40PD012 from NXP Semiconductors is a RF Amplifier with Frequency 2300 to 4200 MHz, Gain 37 dB, P1dB 25 dBm, P1dB 0.31 W, Supply Voltage 3.3 V. Tags: Surface Mount, Power Amplifier, Driver Amplifier. More details for A3M40PD012 can be seen below.