ADP7158

Data Sheet 2 A, Ultralow Noise, High PSRR, RF Linear Regulator ADP7158 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: 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) 70 dB from 1 kHz to 100 kHz; 50 dB at 1 MHz, VOUT = 3.3 V, VIN = 4.0 V Dropout voltage: 200 mV typical at IOUT = 2 A, VOUT = 3.3 V Initial accuracy: ±0.6% at ILOAD = 10 mA Accuracy over line, load, and temperature: ±1.5% Quiescent current: IGND = 4.0 mA at no load, 9.0 mA at 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 oscillators (VCOs), and PLLs with integrated VCOs Communications and infrastructure Backhaul and microwave links GENERAL DESCRIPTION The ADP7158 is a linear regulator that operates from 2.3 V to 5.5 V and provides up to 2 A of output current. Using an advanced proprietary architecture, it provides high power supply rejection and ultralow noise, achieving excellent line and load transient response with only a 10 µF ceramic output capacitor. There are 16 standard output voltages for the ADP7158. The following voltages are avai...