ADM7171ACPZ-R7

The ADM7171ACPZ-R7 is a CMOS linear low-dropout (LDO) voltage regulator manufactured by Analog Devices Inc. It operates from an input voltage range of 2.3 V to 6.5 V and can supply up to 1 A of output current. This LDO is designed for noise-sensitive applications, offering low noise performance of 5 μV rms and high Power Supply Rejection Ratio (PSRR) of 60 dB at 100 kHz.

Key electrical specifications include a low dropout voltage of 42 mV at 500 mA load, initial accuracy of -0.5% to +1%, and accuracy over line, load, and temperature of ±1.5%. The quiescent current is 0.7 mA with no load, and shutdown current is a low 0.25 μA. The device supports adjustable output voltages from 1.2 V to 5.0 V, with options for fixed outputs.

It features precision enable and adjustable soft start control functions. The ADM7171ACPZ-R7 is housed in an 8-lead, 3 mm × 3 mm LFCSP package, suitable for surface mount applications. Its operating temperature range is -40°C to 125°C.

This regulator is well-suited for applications requiring clean power, such as analog and mixed-signal circuits, ADCs and DACs, precision amplifiers, and clocking ICs in communications, medical, and industrial systems.