**Ultra-Low Noise ADP150ACBZ-5-R7 LDO: Precision 5V Power for Noise-Sensitive Applications**

In the realm of high-performance electronics, power integrity is paramount, especially for applications where even the slightest signal degradation can compromise overall system performance. The **ADP150ACBZ-5-R7** from Analog Devices stands out as a premier ultra-low noise linear regulator (LDO), engineered specifically to deliver pristine, stable 5V power to the most demanding noise-sensitive circuits.

The defining characteristic of the ADP150 is its exceptionally low output noise performance. It achieves a remarkable **ultra-low noise level of just 9µV RMS** (typical) across a bandwidth of 10 Hz to 100 kHz. This is a critical advantage for powering analog-to-digital converters (ADCs), digital-to-analog converters (DACs), precision sensors, high-fidelity audio components, and RF transceivers, where power supply noise can directly couple into sensitive signals, degrading signal-to-noise ratio (SNR) and dynamic range.

Beyond its noise performance, the ADP150 excels in power supply rejection (PSR). It offers an impressive **PSRR of up to 72 dB at 1 kHz**, effectively filtering out ripple and noise originating from upstream switching regulators or other noisy power sources. This ensures that fluctuations on the input voltage do not propagate to the regulated output, maintaining a clean and stable supply even in electrically noisy environments.

The regulator is designed for a wide input voltage range from 2.5V to 5.5V, making it an ideal choice for post-regulation from a 3.3V or 5V rail. It provides a fixed, highly accurate 5.0V output with a maximum initial accuracy of ±0.8% and can deliver a continuous output current of up to 150 mA. Despite its high performance, the device maintains a low dropout voltage of typically 300 mV at full load, enhancing power efficiency. Furthermore, its low quiescent current of just 30 µA makes it suitable for battery-powered portable equipment.

Housed in a compact, low-profile **TSOT-23-5 package**, the ADP150ACBZ-5-R7 offers this premium performance in a minimal footprint, crucial for space-constrained PCB designs. The device also incorporates essential protection features like current limiting and thermal shutdown to ensure operational safety and reliability under fault conditions.

**ICGOOODFIND**: The ADP150ACBZ-5-R7 is an industry benchmark for ultra-low noise power regulation. Its unparalleled combination of **sub-10µV noise**, **high PSRR**, and compact form factor makes it an indispensable component for designers striving to maximize performance in precision analog, RF, and audio systems.

**Keywords**: Ultra-Low Noise, Power Supply Rejection Ratio (PSRR), Linear Regulator (LDO), Precision Analog, Signal Integrity.