ADP1765

Data Sheet FEATURES 5 A maximum output current Low input voltage supply range VIN = 1.10 V to 1.98 V, no external bias supply required Fixed output voltage range (VOUT_FIXED): 0.55 V to 1.5 V Adjustable output voltage range (VOUT_ADJ): 0.5 V to 1.5 V Ultralow noise: 2 µV rms, 100 Hz to 100 kHz Noise spectral density: 5 nV/√Hz at 10 kHz; 4 nV/√Hz at 100 kHz Low dropout voltage: 59 mV typical at 5 A load Operating supply current: 5 mA typical at no load ±1.5% fixed output voltage accuracy over line, load, and temperature Excellent power supply rejection ratio (PSRR) performance 61 dB typical at 10 kHz at 5 A load 43 dB typical at 100 kHz at 5 A load Excellent load/line transient response Soft start to reduce inrush current Optimized for small 22 µF ceramic capacitors Current-limit and thermal overload protection Power-good indicator Precision enable 16-lead, 3 mm × 3 mm LFCSP package APPLICATIONS Regulation to noise sensitive applications such as radio frequency (RF) transceivers, analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuits, phase-locked loops (PLLs), voltage controlled oscillators (VCOs) and clocking integrated circuits Field-programmable gate array (FPGA) and digital signal processor (DSP) supplies Medical and healthcare Industrial and instrumentation GENERAL DESCRIPTION The ADP1765 is a low noise, low dropout (LDO) linear regulator. It is designed to operate from a single input supply with an input voltage as low as 1.10 V without the re...