ADP7156

Data Sheet 1.2 A, Ultralow Noise, High PSRR, RF Linear Regulator ADP7156 FEATURES Input voltage range: 2.3 V to 5.5 V 16 standard voltages between 1.2 V and 3.3 V available Maximum load current: 1.2 A Low noise 0.9 μV rms total integrated noise from 100 Hz to 100 kHz 1.6 μV rms total integrated noise from 10 Hz to 100 kHz Noise spectral density: 1.7 nV/√Hz from 10 kHz to 1 MHz Power supply rejection ratio (PSRR) 80 dB from 1 kHz to 100 kHz; 60 dB at 1 MHz, VOUT = 3.3 V, VIN = 4.0 V Dropout voltage: 120 mV typical at IOUT = 1.2 A, VOUT = 3.3 V Initial accuracy: ±0.6% at ILOAD = 10 mA Initial accuracy over line, load, and temperature: ±1.5% Quiescent current: IGND = 4.0 mA at no load, 7 mA at 1.2 A Low shutdown current: 0.2 μA Stable with a 10 μF ceramic output capacitor 10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages Precision enable Supported by ADIsimPower tool APPLICATIONS Regulation to noise sensitive applications: phase-locked loops (PLLs), voltage controlled oscilla...