**ADP7112ACBZ-0-R7: A High-Performance 0V, 200mA Low-Noise LDO Linear Regulator**

In the realm of power management, achieving clean, stable, and low-noise voltage regulation is paramount for the performance of sensitive analog and RF circuits. The **ADP7112ACBZ-0-R7** from Analog Devices stands out as a premier solution, engineered specifically to meet these demanding requirements. This **high-performance, low-dropout (LDO) linear regulator** delivers a fixed 0V output voltage, a feature designed for unique biasing and shutdown applications, with a robust **200mA output current** capability.

The core strength of the ADP7112 lies in its exceptionally low-noise performance. It incorporates an innovative architecture that **minimizes output noise to a mere 9 μV rms** (integrated from 100 Hz to 100 kHz), which is crucial for powering precision components such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), voltage-controlled oscillators (VCOs), and sensors. This ensures that signal integrity is preserved, preventing noise from degrading the overall system performance.

Furthermore, this LDO exhibits an outstanding **power supply rejection ratio (PSRR)** of up to 72 dB at 10 kHz. This high PSRR effectively blocks unwanted ripple and noise from the upstream power supply, such as a switching regulator (SMPS), providing a pristine output voltage even when the input is noisy. Its low dropout voltage of 210 mV at the full 200mA load enhances energy efficiency, allowing it to continue regulating effectively even as the input voltage approaches the output level.

Housed in a compact, space-saving **2 mm × 2 mm LFCSP_WD package**, the ADP7112ACBZ-0-R7 is ideal for modern, high-density PCB designs. It also features a wide input voltage range from 2.7 V to 20 V and comprehensive protection circuitry, including current limiting and thermal shutdown, ensuring reliable operation under fault conditions.

**ICGOODFIND**: The ADP7112ACBZ-0-R7 is an exceptional LDO regulator that sets a high bar for low-noise power delivery. Its combination of **ultra-low noise, high PSRR, and a 0V output option** makes it an indispensable component for designers working on high-precision analog, RF, and mixed-signal systems where power quality is non-negotiable.

**Keywords**: Low-Noise LDO, High PSRR, 200mA Regulator, Precision Analog Power, Voltage Regulator.