Low-noise amplifiers (LNAs) play a significant role in mod–ern millimeter-wave (mmWave) integrated circuit multi-standard transceiver systems. This paper proposes a transformer-less LNA based on a cascade of two AC coupled common source stages, each with inductive degeneration, for the 28-GHz 5G communications band. An automatic design methodology explores the topology design space over a 148-dimensional performance space spreading through different corners for process, voltage, and temperature. It results in about 1000 optimized LNA variants, with gains achieved up to 17.5-dB, and the noise figure and power consumption down to 2.4-dB and 1.86-mW, respectively. These performance figures position the adopted LNA’s performance boundaries with the most recent mmWave LNAs.