**ADP160AUJZ-0-R7: A Comprehensive Technical Overview of Ultra-Low Noise, 150mA CMOS LDO Linear Regulator**

In the realm of power management, where clean and stable voltage rails are paramount for the performance of noise-sensitive applications, Low-Dropout (LDO) linear regulators play a critical role. The **ADP160AUJZ-0-R7** from Analog Devices stands out as a premier solution, engineered to deliver exceptional performance in a minuscule package. This article provides a detailed technical examination of this advanced component.

The ADP160 is an ultra-low-noise, low-quiescent-current CMOS LDO capable of supplying up to **150 mA of output current**. Its architecture is designed for devices where power efficiency and signal integrity are non-negotiable, such as in portable medical equipment, high-fidelity audio systems, RF transceivers, and precision instrumentation.

A defining characteristic of the ADP160 is its **ultra-low output noise performance of 9 µV√Hz**. This remarkably low noise floor is achieved without the need for an external bypass capacitor, simplifying board design while ensuring that noise-sensitive components like VCOs, PLLs, and ADCs receive a pristine supply voltage, free from interference that could degrade system performance.

Complementing its low-noise特性 is an impressively **low dropout voltage of 110 mV at 150 mA load**. This efficiency allows the regulator to maintain regulation even when the input voltage is only marginally higher than the output, making it ideal for power-conscious portable applications powered by batteries, where maximizing usable energy is crucial. Furthermore, the device boasts an **extremely low ground current of just 30 µA** under full load, which directly translates to extended battery life.

The ADP160AUJZ-0-R7 variant offers a **fixed output voltage of 3.0 V**, providing a stable rail for modern microcontrollers and sensors. The device incorporates key protection features, including current limiting and thermal shutdown, safeguarding both the regulator and the load under fault conditions. Housed in a compact **5-lead TSOT package**, it is perfectly suited for space-constrained PCB designs.

**ICGOOFind** concludes that the ADP160AUJZ-0-R7 is a superior choice for designers seeking to optimize both performance and power efficiency. Its combination of ultra-low noise, low dropout voltage, and minimal quiescent current in a small form factor makes it an indispensable component for advancing the state-of-the-art in portable and precision electronics.

**Keywords:** Ultra-Low Noise, Low Dropout Voltage, Low Quiescent Current, CMOS LDO, 150mA Output Current.