MIC5239-3.3YS-TR: A Compact Power Management Solution for Modern Electronics

In the realm of modern electronic design, efficient and reliable power regulation is paramount. The MIC5239-3.3YS-TR stands out as a highly integrated, 150mA low-dropout (LDO) linear voltage regulator that delivers a fixed 3.3V output from a wide input voltage range of 2.7V to 16V. Encased in the miniature SOT-23-5 package, this regulator is engineered for space-constrained applications where board real estate is at a premium, without compromising on performance.

A key feature of this LDO is its remarkably low dropout voltage, typically 115mV at 50mA and 270mV at the full 150mA load. This ensures stable operation even as the input voltage approaches the output level, making it exceptionally efficient for battery-powered devices where maximizing run time is critical. Furthermore, the device boasts an ultra-low ground current of just 600µA at full load, which significantly enhances energy efficiency and prolongs battery life in portable applications.

The MIC5239-3.3YS-TR is designed for robustness and simplicity. It requires only a small 1µF ceramic output capacitor for stability, simplifying the external bill of materials and reducing overall solution cost and size. Built-in protection features, including current limiting and thermal shutdown, safeguard both the regulator and the downstream circuitry from fault conditions, enhancing system reliability.

Typical applications are vast, spanning from consumer electronics and IoT sensors to industrial controls and battery-powered equipment. It is an ideal choice for powering microcontrollers, wireless modules, and other low-power ICs that demand a clean, stable voltage rail.

ICGOOODFIND: The MIC5239-3.3YS-TR is an exceptional combination of miniature size, high efficiency, and robust performance, making it a top-tier choice for designers seeking a reliable linear regulator for compact, power-sensitive designs.

Keywords: Low-Dropout (LDO) Regulator, 150mA, SOT-23-5 Package, 3.3V Output, Thermal Shutdown.