Low-Noise LDO Regulator Provides Whisper-Quiet Voltage For RF Signal Chains
LOW-NOISE AMPLIFIERS, VOLTAGE-CONTROLLED OSCILLATORS, and other RF chips can take advantage of National Semiconductor's LP5900. This 100-mA, lowdropout (80 mV) linear regulator offers a 6.5-µV rms noise spec and a 75-dB power-supply rejection ratio