NCV4264-2ST33T3G: A 150 mA Low-Quiescent Current LDO Voltage Regulator from onsemi

In the realm of power management, efficiency and reliability are paramount, especially for battery-powered and always-on applications. The NCV4264-2ST33T3G from onsemi stands out as a robust and highly efficient 150 mA low-dropout (LDO) voltage regulator engineered to meet these critical demands. This device delivers a fixed 3.3V output from input voltages up to 45V, making it an exceptionally versatile solution for a wide range of automotive, industrial, and consumer electronics.

A defining characteristic of this LDO is its remarkably low quiescent current (Iq). Typically drawing only 19 µA when operating and a mere 1 µA in standby mode, the NCV4264-2ST33T3G is ideally suited for applications where power conservation is essential. This feature is crucial for extending battery life in devices such as telematics, dashboard modules, and IoT sensors that spend significant time in a sleep or standby state.

Beyond its efficiency, the regulator is built for robustness and longevity in harsh environments. It incorporates comprehensive protection features, including current limiting, thermal shutdown, and a fault flag that provides an early warning of an output voltage drop-out condition. Its ability to handle high input voltages and its compliance with automotive-grade AEC-Q100 standards ensure reliable operation under the strenuous conditions of the automotive electrical environment, marked by load-dump and transients.

The device comes in a space-saving SOT-223 package, offering a excellent balance between power dissipation capabilities and board footprint. Its low dropout voltage and high accuracy (±2% output voltage tolerance) further enhance its performance, providing a stable and clean voltage rail to sensitive microcontrollers, sensors, and other critical components.

ICGOOODFIND: The onsemi NCV4264-2ST33T3G is a superior choice for designers seeking a high-input-voltage, low-quiescent-current LDO regulator. Its blend of ultra-low power consumption, robust protection suite, and automotive qualification makes it an indispensable component for creating efficient and reliable next-generation electronic systems.

Keywords: Low Quiescent Current, LDO Voltage Regulator, Automotive Grade, 150 mA, AEC-Q100