**ADP3338AKCZ-5-R7: High-Performance 5V, 3A Ultralow Noise LDO Voltage Regulator**

In the realm of power management, the demand for clean, stable, and efficient voltage regulation is paramount, especially for noise-sensitive applications like RF transceivers, high-precision data converters, medical imaging, and test and measurement equipment. The **ADP3338AKCZ-5-R7** stands out as a premier solution, engineered to deliver **exceptional power quality and high current** in a compact package.

This high-performance LDO (Low-Dropout) regulator is designed to provide a fixed **5V output from an input voltage range of 2.8V to 6.5V**, making it exceptionally versatile for both 3.3V and 5V intermediate bus conversions. Its capability to supply up to **3A of continuous output current** with a very low 180mV dropout voltage at maximum load ensures high efficiency and minimizes power loss, even as the input voltage approaches the output level. This is a critical advantage in battery-operated devices and systems where maximizing runtime is essential.

A defining characteristic of the ADP3338 is its **ultralow noise performance**. It achieves an impressively low output noise level of just **8μVRMS (10Hz to 100kHz)**, which is crucial for powering sensitive analog components and clock circuits without degrading their performance. This is complemented by an outstanding **power supply rejection ratio (PSRR)** of **72dB at 1kHz**, effectively blocking unwanted AC ripples and disturbances from the input supply from appearing on the regulated output.

Beyond its electrical prowess, the ADP3338 is built for robustness. It incorporates key protection features such as **current limiting and thermal shutdown**, safeguarding both the regulator and the load under fault conditions. Its stable operation with low-ESR ceramic capacitors simplifies design and reduces the overall bill of materials. The device is offered in a space-saving, thermally enhanced 8-lead LFCSP package (3mm x 3mm), which provides excellent heat dissipation for high-current operation.

ICGOODFIND: The ADP3338AKCZ-5-R7 is a top-tier LDO regulator that masterfully combines **high current delivery, ultralow noise, and excellent PSRR** into a single, robust package. It is an indispensable component for designers who cannot compromise on power integrity in advanced electronic systems.

**Keywords:** Ultralow Noise, High Current LDO, Power Supply Rejection Ratio (PSRR), 3A Output Current, Voltage Regulator.