20V, 200mA, Ultralow Noise, Ultrahigh PSRR Negative Linear Regulator Features: Ultralow RMS Noise: 0.8µVRMS (10Hz to 100kHz) Ultralow Spot Noise: 2.2nV/√Hz at 10kHz Ultrahigh PSRR: 73dB at 1MHz Output Current: 200mA Wide Input Voltage Range: –1.8V to –20V Single Capacitor Improves Noise and PSRR 100µA SET Pin Current: ±1% Initial Accuracy Single Resistor Programs Output Voltage Programmable Current Limit Low Dropout Voltage: 190mV Output Voltage Range: 0V to –19.5V Programmable Power Good and Fast Start-Up Bipolar Precision Enable/UVLO Pin VIOC Pin Controls Upstream Regulator to Minimize Power Dissipation and Optimize PSRR Minimum Output Capacitor: 4.7µF Ceramic 12-Lead MSOP and 3mm × 3mm DFN Packages