NCV8730BMTW330TBG: A 3.3V, 300mA Ultra-Low-Iq LDO Voltage Regulator from onsemi

In the ever-evolving landscape of power management, efficiency is paramount, especially for battery-powered and always-on applications. Addressing this critical need, onsemi introduces the NCV8730BMTW330TBG, a high-performance, low-dropout (LDO) linear voltage regulator engineered for superior power conservation and reliability.

This device is designed to deliver a fixed 3.3V output from an input voltage range of 2.5V to 5.5V, making it exceptionally versatile for a wide array of systems, including those powered by single-cell Li-ion batteries or 3.3V/5V rails. With a maximum output current of 300mA, it is perfectly suited to power microcontrollers, real-time clocks (RTCs), sensors, and other low-power subsystems that require a clean and stable voltage supply.

The defining feature of the NCV8730BMTW330TBG is its ultra-low quiescent current (Iq). Under typical operating conditions, it draws a mere 3.0 µA of quiescent current, a critical specification that directly translates to extended battery life in portable and IoT devices. This ultra-low Iq is maintained even when the device is in its enabled state, ensuring that power is not wasted while waiting for a load. Furthermore, the regulator incorporates an auto-Discharge function that quickly discharges the output capacitor when the enable pin is deactivated, preventing any unwanted voltage from lingering on the output and ensuring a clean and controlled shutdown.

Beyond its efficiency, this LDO is built for robustness and stability. It offers excellent line and load regulation, ensuring a stable 3.3V output despite fluctuations in input voltage or changes in the current drawn by the load. The device is stable with a small, space-saving 1.0 µF ceramic output capacitor, which helps reduce the overall solution size and bill-of-materials cost. Packaged in a compact WDFN-6 (2.0mm x 2.0mm) package, it is an ideal choice for space-constrained PCB designs.

As an automotive-grade component from onsemi, it is also characterized for operation over a wide temperature range of -40°C to +125°C, ensuring reliable performance in harsh environmental conditions, from industrial automation to automotive electronics.

ICGOOFind:

The onsemi NCV8730BMTW330TBG stands out as an optimal power management solution where minimal power consumption, high reliability, and a small footprint are non-negotiable design requirements. Its exceptional combination of ultra-low quiescent current, robust feature set, and automotive qualification makes it a top-tier choice for designers of next-generation portable, IoT, and automotive applications.

Keywords:

Ultra-Low Iq, LDO Voltage Regulator, 300mA Output, Power Management, Automotive Grade